Sydney R. Kokjohn
Patent attorney, USPTO registration number 63868, status Active.
- Firm
- McDonnell Boehnen Hulbert & Berghoff LLP
- Location
- Chicago, IL
- On the USPTO roster since
- October 2009
Sydney R. Kokjohn is a USPTO-registered patent attorney (registration number 63868) at McDonnell Boehnen Hulbert & Berghoff LLP, in Chicago, IL. The registration is active on the current USPTO roster, and Sydney R. Kokjohn has been listed on the roster since October 2009.
McDonnell Boehnen Hulbert & Berghoff LLP has 73 registered patent practitioners on the roster (55 patent attorneys and 18 patent agents), so Sydney R. Kokjohn works alongside 72 other registered practitioners there.
Chicago, IL has 1,896 registered patent practitioners in all: 1,537 patent attorneys and 303 patent agents.
Other registered practitioners in Chicago, IL
- Wallace H. Feng — Patent attorney, Reg. No. 78304, Leydig Voit and Mayer LTD
- Kevin Patrick Ferguson — Patent attorney, Reg. No. 51043, Motorola Solutions
- Robert M. Fernandes — Patent attorney, Reg. No. 79887, Taft Stettinius & Hollister LLP
- Roberto J. Fernandez — Patent attorney, Reg. No. 73761, Foley & Lardner, LLP
- Lilian Y. Ficht — Patent agent, Reg. No. 64514, Marshall ,Gerstein & Borun LLP
- Thomas J. Filarski — Patent attorney, Reg. No. 31612, Steptoe & Johnson LLP
- Paul J. Filbin — Patent attorney, Reg. No. 51677, Leydig Voit and Mayer LTD
- Sergio D. Filice — Patent attorney, Reg. No. 59727, Hanley Flight & Zimmerman LLC
All patent attorneys and agents in Chicago, IL
Patent firms in Illinois · Practitioners by state
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