Marion D. Hefner

Patent attorney, USPTO registration number 41826, status Active.

Firm

Leydig Voit and Mayer LTD

Location

Chicago, IL

On the USPTO roster since

before May 2006

Marion D. Hefner is a USPTO-registered patent attorney (registration number 41826) at Leydig Voit and Mayer LTD, in Chicago, IL. The registration is active on the current USPTO roster, and Marion D. Hefner has been listed on the roster since before May 2006.

Leydig Voit and Mayer LTD has 31 registered patent practitioners on the roster (29 patent attorneys and 2 patent agents), so Marion D. Hefner works alongside 30 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

• Erik B. Flom — Patent attorney, Reg. No. 41021, Husch Blackwell Sanders LLP
• Jacob R. Florsheim — Patent agent, Reg. No. 83330, Foley & Lardner, LLP
• Kevin M. Flowers — Patent attorney, Reg. No. 44684, Marshall ,Gerstein & Borun LLP
• Louis E. Fogel — Patent attorney, Reg. No. 54731, Fish & Richardson PC
• James R. Foley — Patent attorney, Reg. No. 39979, Clark Hill PLC
• James K. Folker — Patent attorney, Reg. No. 37538, Greer Burns and Crain LTD
• James T. Fondriest — Patent agent, Reg. No. 68152, The Kraft Heinz Company
• Joseph J. Forchetti — Patent attorney, Reg. No. 82657, Marshall ,Gerstein & Borun LLP

All patent attorneys and agents in Chicago, IL

Patent firms in Illinois · Practitioners by state

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