David D. Headrick

Patent attorney, USPTO registration number 40642, status Active.

Firm

McAndrews Held & Malloy LTD

Location

Chicago, IL

On the USPTO roster since

before May 2006

David D. Headrick is a USPTO-registered patent attorney (registration number 40642) at McAndrews Held & Malloy LTD, in Chicago, IL. The registration is active on the current USPTO roster, and David D. Headrick has been listed on the roster since before May 2006.

McAndrews Held & Malloy LTD has 37 registered patent practitioners on the roster (33 patent attorneys and 4 patent agents), so David D. Headrick works alongside 36 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

• Steven J. Birkos — Patent attorney, Reg. No. 65300
• John G. Bisbikis — Patent attorney, Reg. No. 37095, Prospect Law LLP
• Heather Ann Bjella — Patent attorney, Reg. No. 59417, Aurora Wdc
• Marc S. Blackman — Patent attorney, Reg. No. 43501, Jones Day
• Raiford A. Blackstone, Jr — Patent attorney, Reg. No. 25156, Clark Hill PLC
• Michael J. Blankstein — Patent attorney, Reg. No. 37097, WMS Gaming INC
• Karen L. Blouin — Patent attorney, Reg. No. 57098, U.S. Department of Energy
• David H. Bluestone — Patent attorney, Reg. No. 44542, Barack Ferrazzano Kirschbaum & Nagelberg

All patent attorneys and agents in Chicago, IL

Patent firms in Illinois · Practitioners by state

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