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LES DC event: Avoiding the Traps: Practical Tips in Filing PCT Patent Applications in Europe
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LES DC event: Avoiding the Traps: Practical Tips in Filing PCT Patent Applications in Europe

When: Thursday, September 7, 2017
12:00 pm - 1:00 p.m.
Where: Sidley & Austin
1501 K Street, NW
Washington, District of Columbia  20005
United States
Contact: Ray Van Dyke
(202) 378-3903

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Washington, D.C., LES Chapter presents:

Avoiding the Traps: Practical Tips in Filing PCT Patent Applications in Europe 



Thursday, September 7

12:00 pm - 1:00 pm Eastern


Through September 5         

LES Member: $25.00       

Non-Member: $35.00       

Stud. Member: $10.00     

After September 5

LES Member: $35.00

Non-Member: $45.00

Stud. Member: $20.00


Sidley & Austin
1501 K Street, NW
Washington, D.C.  20005

Nearest Metro Stops:

Farragut North
Farragut West
Metro Center

Program Description:

The differences between the patent laws in Europe and the U.S., although not great, do contain some subtleties that could cost inventors/companies/clients unnecessary costs and delay in prosecuting their patent applications there. With the rules and their interpretation shifting, it is important for patent attorneys to better understand the nature of those rules on behalf of their clients, and the differences between the U.S. style and European preferences. The speaker, an expert on the rules and frequent presenter worldwide on the topic, will provide the audience with practical tips to posture cases efficiently and cost-effectively.


Detlef von Ahsen

Managing Partner, Kuhnen & Wacker

Detlef von Ahsen is a managing partner with the IP Law Firm of KUHNEN & WACKER in Freising/Munich, Germany. 

He is a German and European Patent Attorney and a European Trademark and Design Attorney who is specialized in the fields of mechanical engineering (road and rail motor vehicles, ship building, internal combustion engines, agricultural engineering, construction/civil engineering), thermal and sound insulation technologies as well as electrical engineering, chemical and biological engineering. 

Detlef von Ahsen has also been involved in many trademark litigation cases and is a specialist on 3-D marks. His technical background makes him a valuable expert when it comes to assessing identity and/or similarity of goods and services in opposition cases.

He studied mechanical engineering and was awarded a master’s degree of Diplom-Ingenieur from the University of Darmstadt. 

Prior to joining KUHNEN & WACKER, Detlef von Ahsen worked as a patent attorney with his own law firm and as a product engineer with Baker Hughes Inteq in 1991/1992. He also lectured on "Patent Practice for Engineers" at the University of Applied Science, Bremen and has most recently also presented Seminars on IP in Germany, China and the U.S.A.

He is a member of the German Chamber of Patent Attorneys (Member of the Board since 2002), EPI (European Patent Institute), AIPPI (GRUR national and international), AIPLA (American Intellectual Property Law Association), FICPI (International Federation of Industrial Property Attorneys), INTA (International Trademark Association) and LES (Licensing Executives Society). 

KUHNEN & WACKER is an intellectual property (IP) law firm which was established more than 35 years ago. The professional staff is highly specialized in all IP matters. The firm represents large and medium sized corporations based worldwide as well as universities and individual inventors.


The Washington, D.C., Chapter uses online registration for members and non-members and accepts payment by credit card.  Members should login to the registration page with their LES online account.


Cancellations are non-refundable after September 5.  Substitutions will be accepted.  Contact Chapter Relations at (703) 234-4058 for assistance.


Disability/Dietary Needs
Requests for ADA accommodations and special dietary needs should be submitted to the event contact listed at the top of the page. 


Photography Consent
By registering for this event, you permit LES and its chapters to use photographs of you with or without your name and for any lawful purpose, including for example such purposes as publicity, illustration, advertising, and web content.


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