A tradition of innovation and milestones

For over 40 years, we have also advised our national and international clients in cases which require special expertise, creative strategies and ingenuity. Of these, many had a major impact on the case law in our area of practice.

The following is a list of decisions in which we were involved. These represent milestones in case law (patent and utility model law, trademark law, design patent law, unfair competition law and variety protection law).

An attorney of court from Wildanger participated in at least one instance in each of these decisions.

Patent and Utility Model Law

BGH GRUR 2017, 57 – Datengenerator Scope of nullification if set of main claims is at issue
OLG Düsseldorf GRUR RS 2016, 09322 – FRAND Preliminary stay rejected by the Appeals Court
LG Mannheim GRUR Prax 2016, 84 – Fehlende Lizenzwilligkeit beim kartellrechtlichen Zwangslizenzeinwand Lack of willingness to take a FRAND license
LG Düsseldorf GRUR RS 2016, 08353 – Ausländersicherheit No foreigners security required from German GmbH subsidiary of a US company
OLG Karlsruhe GRUR RR 2015, 326 – Mobiltelefone FRAND defense if supplier/manufacturer is willing to take a license
OLG Karlsruhe GRUR1 2015, 252 – Leiterbahnstrukturen Preliminary stay of enforcement by the Appeals Court
BGH BeckRS 2014, 12672 Patentability of a “Method for cleaning Immunglobulin-G-Antibodies”
OLG Karlsruhe GRUR 2014, 352 – Stanzwerkzeug Assumption of validity of a utility model if the DPMA has rendered a decision in cancellation proceedings
BGH GRUR-Prax2 2014, 109 – Bildanzeigegerät novelty-destroying state of the art by providing a product manual
BGH GRUR 2013, 316 – Rohrmuffe Conditions for further inspection by an expert
BGH, Order dated 10.11.2009, X ZR 11/06 – Produktionsrückstandsentsorgung Refusal of a request for a revision of a defendant found to infringe the patent in suit even though the patent in suit was in part nullified after the appeal decision
BGH GRUR2 2008, 597 – Betonstraßenfertiger Demands of priority for a restricted subsequent application
BGH GRUR 2007, 778 – Ziehmaschinenzugeinheit Claim construction in infringement proceedings after partial declaration of nullity
BGH GRUR 2007, 773 – Rohrschweißverfahren = Federal Supreme Court IIC3 2008, 106 – Pipe Welding Process Conditions precedent to contributory patent infringement
BGH GRUR 2007, 769 – Pipettensystem Conditions precedent to contributory patent infringement
BGH GRUR 2006, 399 – Rangierkatze Patent infringement by objective suitability to infringe the patent
BGH GRUR 2005, 848 – Antriebsscheibenaufzug Designation of means in public domain for direct patent infringement; extent of compensation for contributory patent infringement
BGH GRUR 2005, 569 – Blasfolienherstellung Requirements on definiteness of claims in patent infringement proceedings
BGH GRUR 2004, 966 – Spundfass =Federal Supreme Court IIC 2005, 742 – Standard Tight-Head Drum Compulsory license based on antitrust law; patented standard
BGH GRUR 2003, 1031 – Kupplung für optische Geräte Offering by distribution of a brochure with pictures of a product equal with the patent
BGH GRUR 2002, 231 – Biegevorrichtung Scope of right of prior use in patent law
BGH GRUR 2002, 511 – Kunststoffrohrteil Claim construction and patent granting procedure
BGH GRUR 2002, 519 – Schneidmesser II Protection by patents in case of surplus in technical contents of invention
BGH GRUR 2001, 228 – Luftheizgerät Conditions precedent to contributory patent infringement
BGH Mitt.4 2000, 105 – Extrusionskopf Claim construction by description and drawings
BGH GRUR 1995, 338 – Kleiderbügel Right to sue of an exclusive licensee to a patent
BGH GRUR 1992, 40 – Beheizbarer Atemluftschlauch Claim construction
BGH GRUR 1991, 811 – Falzmaschine Determination of the technical problem of the patent on the basis of the patent specification
BGH GRUR 1989, 187 – Kreiselegge II On the obligation to concentrate claims based on one or mare patents in one complaint
BGH GRUR 1981, 259 Heuwerbungsmaschine II Indication of purpose as a hint for the spatial-physical definition of individual features
BGH GRUR 1978, 699 – Windschutzblech Granting procedure and claim construction
BGH GRUR 1975, 484 – Etikettiergerät Infringement of a combination-patent by using „clear equvivalent“ means
Gerichtshof Den Haag Mitt. 1997, 34 – Grenzüberscheitende Unterlassungsverfügung Urgency of a preliminary injunction in connection with a cross-border order to cease and desist
OLG Düsseldorf InstGE5 (2011) 13, 199 – Schräg-Raffstore Concerning the calculation of infringers profits and the costs factors that are taken into account
OLG Düsseldorf InstGE (2008) 9, 66 – Trägerbahnöse Subjective conditions precedent to contributory patent infringement
OLG Düsseldorf InstGE (2008) 9, 56 – Rücknahme des Ordnungsmittelantrags Conditions precedent to the withdrawal of an application for subpoenas in respect of time
OLG Düsseldorf InstGE (2008) 8, 122 – Medizinisches Instrument Uncertainty of a patent’s legal validity in spite of unsuccessful opposition proceedings
OLG Düsseldorf InstGE (2008) 8, 103 – Etikettiermaschine Enforcement of claim for inspection
OLG Düsseldorf InstGE (2006) 6, 123 – Elektronische Anzeigevorrichtung Scope of the judgment and modified embodiement
OLG Düsseldorf Mitt. 2006, 129 – Hubkippvorrichtung = OLG Düsseldorf Mitt. 2006, 553 – Lifter Causation of the infringer’s profit by the use of the patent
OLG Düsseldorf InstGE (2004) 4, 252 – Rohrschweißverfahren Contributory infringement and the coverage of the patent holder’s consent to the use of the patent vis-a-vis commercial consumers
OLG Düsseldorf InstGE (2003) 3, 176 – Glasscheiben-Befestiger Scope of the claim for rendering account
OLG Düsseldorf Mitt. 2003, 264 – Antriebsscheibenaufzug Designation of means in public domain for direct patent infringement; extent of compensation for contributory patent infringement
OLG Düsseldorf Mitt. 2001, 424 – Längenverstellbares Trägerelement Scope of the claim for information in respect of time
OLG Düsseldorf GRUR 2000, 599 – Staubsaugerfilter Claim construction
OLG Düsseldorf GRUR 1999, 702 – Schließfolgeregler Conditions precedent to equivalent patent infringement
OLG Düsseldorf Mitt. 1998, 179 – Mehrpoliger Steckverbinder Claim construction
OLG Düsseldorf Mitt. 1998, 27 – Schadensersatz nach der Lizenzanalogie Determination of an adequate licence in case of damages calculated by licence analogy
OLG Düsseldorf GRUR Int.6 1993, 242 – Epilady VIII Requirements of equivalent patent infringement according to sec. 69 EPC in connection with the interpretation-protocol
OLG Düsseldorf GRUR 1993, 818 – Mehrfachkleiderbügel Enforcement of the claim for information in the course of preliminary injunction proceedings
OLG Düsseldorf GRUR Int. 1990, 471 – Epilady I Proof of equivalent patent infringement in the course of preliminary injunction proceedings
LG Düsseldorf InstGE (2008) 9, 108 – Klageerweiterung im Verletzungsprozess Relevance of the extension of the plaintiff’s claim in view of §145 PatG product
LG Düsseldorf InstGE (2008) 9, 18 – Beleghalter für Scheibenbremse Risk of first infringement in territorial jurisdiction of a patent court in case of an act of infringement in another patent court’s territorial jurisdiction only
LG Düsseldorf Mitt. 2008, 119 – Härtungsmittel für wässrige Härze Extension of the scope of a patent from chemical intermediate to final product
LG Düsseldorf GRUR Int. 2007, 347 – Medizinisches Instrument Different form requirements for assignment of the right to a patent on the one hand and the European Patent Application on the other hand
LG Mannheim InstGE (2007) 7, 14 – Halbleiterbaugruppe Default of a mere dealer in case of patent infringement
LG Düsseldorf InstGE (2006) 6, 130 – Diffusor No patent infringement by a engineer if the parts are produced and assembled abroad
LG Düsseldorf InstGE (2006) 6, 37 – Abmahnkosten bei Patentverletzung Amount of lawyer’s fee for a warning letter in patent matters
LG Düsseldorf InstGE (2005) 5, 64 – Kleberoller Urgency in case of infringing embodiment
LG Düsseldorf InstGE (2003) 3, 153 – WC-Erfrischer Jurisdiction for a negative declaratory judgement concerning patent infringement of national parts of a European patent; interest in declaratory judgement by marking and notification
LG Düsseldorf InstGE (2003) 3, 1 – Schweißgerät Contributory patent infringement by delivery of gear affecting essential parts of the procedure
LG Düsseldorf InstGE (2002) 2, 253 – Wirbelkammer Functional claim construction of common technical terms in patent claim
LG Düsseldorf GRUR-RR 2001, 205 – Kaminrohr Claim construction in case of numbers and indications of measurements in patent claim
LG Düsseldorf Entscheidungen7 2000, 91 – Spritzkopfschnecke Conditions precedent to action of a negative declaratory judgement
LG Düsseldorf Entscheidungen 2000, 88 – Betonpumpe Need for legal relief in patent infringement suits
LG Düsseldorf Entscheidungen 2000, 63 – Kondensatableiter Determination of an adequate licence in case of damages calculated by licence analogy
LG Düsseldorf Entscheidungen 2000, 32 – Müllbehältergreifvorrichtung Requirements of an effective claiming of a service invention
LG Düsseldorf Entscheidungen 2000, 8 – Abfallsammelbehälter Capacity of Employer in a concern/”double-invention within company”
LG Düsseldorf Entscheidungen 1999, 75 – Verglasungsklotz Differentiation between direct and contributory patent infringement
LG Düsseldorf Entscheidungen 1999, 5 – Filterbeutel Scope of the claims for damages and information with respect to contributory patent infringement
LG Düsseldorf Mitt. 1999, 179 – Levitationsmaschine Exhaustion with respect to product patent and process patent
LG Düsseldorf Entscheidungen 1998, 28 – Zeitzeichenempfänger Scope of the right of prior use
LG Düsseldorf Entscheidungen 1998, 17 – Verfahren zur Abgasreinigung Requirements of written form in matters of antitrust law
LG Düsseldorf GRUR Int. 1998, 804 – Impfstoff II Stay of proceedings with respect to motion for declaratory judgment in another memberstate of European Union
LG Düsseldorf Entscheidungen 1997, 122 – Kostenfaktoren Requirements on detailed information on cost factors by rendering account
LG Düsseldorf Entscheidungen 1997, 118 – Europaweiter Patentschutz Misleading advertisement with „Europe-wide patent protection“ if a product is not protected by a patent for the whole of Europe
LG Düsseldorf Entscheidungen 1997, 68 – Patentiertes Pflegebett Inadmissibility of a general clue on “patented technique” under competition law if the product also contains public domain components
LG Düsseldorf Entscheidungen 1997, 51 – Herzschrittmacher Claim construction
LG Düsseldorf Entscheidungen 1996, 76 – Verfahren zur exponentiellen Amplifikation einer Nukleinsäuresequenz Claim construction of a process patent
LG Düsseldorf Entscheidungen 1996, 41 – Pizzaschachtel Determination of an adequate licence in case of damages calculated by licence analogy
LG Düsseldorf Entscheidungen 1995 II, 3 – Mischventil Preliminary obligation of licensing patent owner to inform licensee
LG Düsseldorf Entscheidungen 1995 I, 7 – Vorrichtung zum Leeren von Müllbehältern II Determination of an adequate licence in case of damages calculated by licence analogy
LG Düsseldorf GRUR 1994, 509 – Rollstuhlfahrrad Possible objections of the defendant in case of equivalent patent infringement
LG Düsseldorf GRUR 1990, 117 – Strickwarenhandel II Scope of claim for information in respect of time
LG Düsseldorf GRUR 1989, 583 – Strickwarenhandel Requirements of negligent patent infringement for department stores
LG Düsseldorf GRUR Int. 1988, 594 – Haushaltsschneidemaschine Requirements of the right of prior use in patent law

Trademark Law

EuG GRUR-Prax 2013, 268 – RIDGE WOOD No similarity of goods/services in case of different customers
EuGH MarkenR8 2005, 438 – THOMSON LIFE Likelihood of confusion with respect to composite trademarks
EuGH GRUR Int. 1994, 614 – Ideal Standard II Territoriality and independency of claims according to national trademark law; free movement of goods
BGH GRUR 2004, 947 – gazoz Split common opinion on lemonade as a generic term or indication of origin
BGH MarkenR 2002, 335 – 1, 2, 3 im Sauseschritt Elimination of the likelihood of confusion by different meaning despite similiarity in sound
BGH WRP9 2002, 534 – BIG Requirements of likelihood of confusion with respect to series of marks
BGH GRUR 1998, 697 – Venus Multi Use of a trademark as a description
BGH GRUR 1971, 251 – Oldtimer Use of a sign as a trademark; period of grace
OLG Stuttgart InstGE (2011) 13, 44 – Magic Sky genuine use of a trade mark for multiple goods
OLG Düsseldorf InstGE (2004) 4, 183 – LIFE Likelihood of confusion by adding a mark of an undertaking to third-party trademark
LG Düsseldorf InstGE (2001) 1, 107 – Centrotherm Infringement of trademarks and names by reservation of an internet-domain
OLG Düsseldorf Mitt. 2003, 327 – Top Ticket Significance of the prospect of a suit for cancellation of a trade mark in injunction proceedings based on trade mark infringement
OLG Düsseldorf GRUR-RR10 2002, 20 – T-Box Use of an internet-domain identical in wording with registered trademark
OLG Düsseldorf Mitt. 2001, 377 – Wiederverwendbarer Gaszylinder Refilling of a marked gas-barrel as a trademark infringement
OLG Düsseldorf GRUR-RR 2001, 49 – Combit/ComIT No estoppel deriving from an older trade mark only licensed for the use of defense
OLG Düsseldorf WRP 1996, 559 – adp Requirements of a „contributory trade mark infringement”
OLG Düsseldorf WRP 1995, 330 – Ideal Standard Use of a trade mark as an infringement of older trade names
LG Düsseldorf Entscheidungen 2000, 15 – 1, 2, 3 im Sauseschritt Protectability and scope of protection of the title of a children’s book
LG Düsseldorf Entscheidungen 1999, 115 – GVP Seniority of trade names consisting of combinations of letters after the trade mark act came into force
LG Düsseldorf Entscheidungen 1998, 21 – Witch Game Deception and dishonesty of advertisement with a non-existing trademark
LG Düsseldorf Mitt. 1998, 273 – BIG II Interference into a business by unjustified warning letter or preliminary injunction; the use of a trademark in a catalogue is appropriate to preserve the rights confered
LG Düsseldorf Entscheidungen 1996, 84 – BIG Distinctiveness of a trademark and danger of confusion requirements
LG Düsseldorf Entscheidungen 1996, 83 – Kult Shirts Distinctiveness of commercial designations
LG Düsseldorf Entscheidungen 1996, 54 – Contec Forfeiture of trademark claims
LG Düsseldorf Entscheidungen 1996, 7 – IPRax/WPrax Likelihood of confusion in case of identical part of title
LG Düsseldorf Entscheidungen 1995 III, 7 – Fruit Point Scope of claims for information and damages in respect of time
LG Düsseldorf Entscheidungen 1995 III, 4 – PAGEL Likelihood of confusion in case of similar names
LG Düsseldorf Entscheidungen 1995 II, 6 – EWIKON/EVICOM Necessary similarity of field of business for a likelihood of confusion

Design Patent Law

LG Düsseldorf InstGE (2008) 9, 114 – Taschenlampe Amount of refundable costs for the request of a closing statement
BGH GRUR 2004, 427 – Computergehäuse Judgment of the existing design corpus
BGH WRP 2004, 1175 – Klemmhebel Judicial appraisal of the existing design corpus
OLG Düsseldorf InstGE (2004) 4, 152 – Teppichbodenmuster Forfeiture of claims based on infringement of design patents

Unfair Competition Law

OLG Düsseldorf InstGE (2009) 10, 98 – Lithographische Druckplatten Jurisdiction of German courts and applicability of German unfair competition law in case of a press statement on a German patent infringement suit published on the internet abroad by a foreign company
LG München ZUM-RD11 2006, 139-144 Differentiation between unallowed adaption and free use; No unallowed adaption by using the idea of presenting bears in explicit poses
OLG Frankfurt/Main GRUR-RR 2003, 287 – Magic Modul purpose of a console to decode pay-TV-programmes without a permission
OLG Düsseldorf GRUR-RR 2001, 94 – Zustellung im Parteibetrieb Deadline met by application for service
OLG Hamm GRUR 1991, 689 – Das Möbelerlebnis im Westen Conditions precedent to misleading advertisements with unique selling position
LG Düsseldorf Entscheidungen 1998, 22 – Zargenschloß Conditions precedent to particular competitive nature for technical goods

Plant Protection Law

EuGH Mitt. 2004, 219 – Saatgut-Treuhandverwaltungsgesellschaft Scope of a union of owners of registered plant varieties right to sue; scope of claims for information

Antitrust Law

EuGH GRUR Int. 1994, 614 – Ideal Standard Effects of transfer of foreign marks on remaining national marks
BGH GRUR 2004, 966 – Standard-Spundfass The claim for granting of a patent licence is not excluded by the authority to grant a compulsory licence
BGH GRUR 2002, 915 – Wettbewerbsverbot im Realteilungsvertrag Scope of res judicata with respect to the examination of non-competition clauses
BGH GRUR 1998, 838 – Lizenz- und Beratungsvertrag Requirement of written form in matters of antitrust law with respect to licence and advisory agreements which contain restrictions of the licensee; compensation of enrichment in cases of formal defects of a licence and advisory agreement

1 GRUR = Gewerblicher Rechtsschutz und Urheberrecht

2 GRUR-Prax = GRUR-Praxis im Immaterialgüter- und Wettbewerbsrecht

3 IIC = International Review of Intellectual Property and Competition Law

4 Mitt. = Mitteilungen der Deutschen Patentanwälte

5 InstGE = Rechtssprechung der Instanzgerichte zum Recht des geistigen Eigentums

6 GRUR Int. = GRUR Internationaler Teil

7 Entscheidungen = Entscheidungssammlung der 4. Zivilkammer des Landgerichts Düsseldorf

8 MarkenR = Zeitschrift für deutsches, europäisches und internationales Markenrecht

9 WRP = Wettbewerb in Recht und Praxis

10 GRUR-RR = GRUR-Rechtsprechungsreport

11 ZUM-RD = Zeitschrift für Urheber und Medienrecht – Rechtsprechungsdienst

Wildanger – entscheidend anders.