Keith L. Constantine

Patent agent, USPTO registration number 75458, status Active.

Location

Langhorne, PA

On the USPTO roster since

December 2016

Keith L. Constantine is a USPTO-registered patent agent (registration number 75458), in Langhorne, PA. The registration is active on the current USPTO roster, and Keith L. Constantine has been listed on the roster since December 2016.

Langhorne, PA has 8 registered patent practitioners in all: 5 patent attorneys and 3 patent agents.

Other registered practitioners in Langhorne, PA

• Steven D. Boyd — Patent attorney, Reg. No. 31000, Arkema Inc
• Harvey David Fried — Patent attorney, Reg. No. 28298, Technicolor
• George B. Tereschuk — Patent attorney, Reg. No. 37558, George B. Tereschuk, Esq.
• Hal B. Woodrow — Patent attorney, Reg. No. 32501, Johnson & Johnson

All patent attorneys and agents in Langhorne, PA

Patent firms in Pennsylvania · Practitioners by state

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