John A. Langworthy

Patent attorney, USPTO registration number 32255, status Active.

Firm

E I Du Pont de Nemours and CO

Location

Houston, TX

On the USPTO roster since

before May 2006

John A. Langworthy is a USPTO-registered patent attorney (registration number 32255) at E I Du Pont de Nemours and CO, in Houston, TX. The registration is active on the current USPTO roster, and John A. Langworthy has been listed on the roster since before May 2006.

E I Du Pont de Nemours and CO has 8 registered patent practitioners on the roster (6 patent attorneys and 2 patent agents), so John A. Langworthy works alongside 7 other registered practitioners there.

Houston, TX has 1,204 registered patent practitioners in all: 965 patent attorneys and 222 patent agents.

Other registered practitioners in Houston, TX

• Johnny Alfred, III — Patent attorney, Reg. No. 78341, The Alfred Firm
• Arzeena S. Ali — Patent agent, Reg. No. 84275, Fletcher Yoder
• Deola T. Ali — Patent attorney, Reg. No. 70187
• Billy Collins Allen, III — Patent attorney, Reg. No. 46147, Blank Rome LLP
• Abdulrahman A. Althebaity — Patent attorney, Reg. No. 79882
• Richard A. Alvarado — Patent agent, Reg. No. 78457
• Alberto Q. Amatong, Jr — Patent attorney, Reg. No. 41580, The Amatong Law Firm, PLLC
• J Mike Amerson — Patent attorney, Reg. No. 35426, Amerson Law Firm PLLC

All patent attorneys and agents in Houston, TX

Patent firms in Texas · Practitioners by state

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