Patent Attorneys and Attorneys at Law
Competence in commercial legal protection since 1963

Areas of expertise

Let us introduce our key areas of expertise. For further reference please browse the menu of portraits.

In the area of technical IPR as well as design protection our areas of expertise cover the following technologies:

Bio-, environmental and food technology
Electrical engineering
Utility engineering
Automotive technologies
Semiconductor technologies

Nuclear physics
Laser technologies
Mechanical engineering
Medical technologies

Measuring technologies
Controlling und regulating technologies
Process engineering
Tools and machining


We introduce ourselves and our areas of activites:

Jür­gen See­wald

Jür­gen See­wald

Dipl.-Ing. Jür­gen See­wald
Patent Attorney, European Patent and Trademark Attorney

Patents and utility models, inter alia, in the fields of energy systems, elec­tri­cal engi­nee­ring and elec­tro­nics, mecha­ni­cal engi­nee­ring, opti­cal engi­neer­ing and laser technology, pro­cess tech­ni­ques, automatic control technology, materials, medical equipment


Detlev Oelfke

Detlev Oelfke

Detlev Oelfke LL.M.
Attorney at Law

trade marks, copy­right, unfair com­pe­ti­tion, licen­sing and com­mer­cial con­tracts, IPR infrin­ge­ment and pro­duct piracy, Anglo-American law

Ulrich H. Bremer

Ulrich H. Bremer

Dipl.-Phys. Ulrich H. Bremer
Patent Attorney
European Patent and Trademark Attorney

Patents and utility models, inter alia, in the fields of

  • vehicle technology
  • electronics, measuring technology, control engineering
  • mechanics, mechanical engineering, process technology
  • optical technologies
  • materials, semiconductors



  • CEIPI – University of Strasbourg since 2002
  • Hannover University of Applied Sciences and Arts since 2015
Frank Lüdtke

Frank Lüdtke

Dipl.- Ing. Frank Lüdtke
Patent Attorney, European Patent and Trademark Attorney

Patents and utility models, inter alia, in the fields of automatic control engineering, mecha­ni­cal engi­nee­ring, mining technology, vehicle technology, materials


Dr. Thomas Lüdtke

Dr. Thomas Lüdtke

Dr. rer. nat. Dipl.-Phys. Thomas Lüdtke
Patent Attorney

patents and uti­lity models , inter alia, in the fields of mecha­ni­cal engi­nee­ring, nuclear technology, laser technology, machine tools, vehicle technology, automatic cojntrol technology, materials, tele­com­mu­ni­ca­tions