Douglas J. Barker

Patent attorney, USPTO registration number 40423, status Active.

Firm

Microsoft Corporation

Location

Redmond, WA

On the USPTO roster since

before May 2006

Douglas J. Barker is a USPTO-registered patent attorney (registration number 40423) at Microsoft Corporation, in Redmond, WA. The registration is active on the current USPTO roster, and Douglas J. Barker has been listed on the roster since before May 2006.

Microsoft Corporation has 63 registered patent practitioners on the roster (57 patent attorneys and 6 patent agents), so Douglas J. Barker works alongside 62 other registered practitioners there.

Redmond, WA has 100 registered patent practitioners in all: 88 patent attorneys and 12 patent agents.

Other registered practitioners in Redmond, WA

• Benjamin S. Lin — Patent attorney, Reg. No. 58858, Microsoft Corporation
• George D. Liu — Patent attorney, Reg. No. 47752
• Thomas R. Marquis — Patent attorney, Reg. No. 46900, Microsoft
• John P. Mulgrew — Patent attorney, Reg. No. 47809, Microsoft Corportation
• Dylan J. Nelson — Patent attorney, Reg. No. 65974, Microsoft
• Holly L. Nguyen — Patent attorney, Reg. No. 53385, Oculus VR LLC
• Robert Yoichi Oikawa — Patent agent, Reg. No. 57982, The Oikawa Group, LLP
• Samantha C. Pak — Patent attorney, Reg. No. 58839, Physio-Control/Stryker

All patent attorneys and agents in Redmond, WA

Patent firms in Washington · Practitioners by state

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