John O. Hillman

Patent attorney, USPTO registration number 84186, status Active.

Firm

Duane Morris LLP

Location

Philadelphia, PA

On the USPTO roster since

November 2025

John O. Hillman is a USPTO-registered patent attorney (registration number 84186) at Duane Morris LLP, in Philadelphia, PA. The registration is active on the current USPTO roster, and John O. Hillman has been listed on the roster since November 2025.

Duane Morris LLP has 60 registered patent practitioners on the roster (54 patent attorneys and 6 patent agents), so John O. Hillman works alongside 59 other registered practitioners there.

Philadelphia, PA has 513 registered patent practitioners in all: 377 patent attorneys and 115 patent agents.

Other registered practitioners in Philadelphia, PA

• Jeffrey W. Lesovitz — Patent attorney, Reg. No. 63461, Baker & Hostetler LLP
• Richard L. Leung — Patent agent, Reg. No. 60711, Morgan Lewis & Bockius LLP
• Gary Harris Levin — Patent attorney, Reg. No. 28734, Baker & Hosterler LLP
• Yuqi Li — Patent attorney, Reg. No. 80363, Baker-Hostetler
• Francine F. Li — Patent attorney, Reg. No. 68056, Blank Rome LLP
• Shawn Shiqing Li — Patent agent, Reg. No. 58132, Zaher Li PLLC
• Daniel R. Ling — Patent attorney, Reg. No. 53223, Fay Sharpe LLP
• Lisa M. Lint — Patent agent, Reg. No. 60856, DLA Piper

All patent attorneys and agents in Philadelphia, PA

Patent firms in Pennsylvania · Practitioners by state

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