David William Old

Patent agent, USPTO registration number 77309, status Active.

Firm
Maschoff Brennan
Location
Irvine, CA
On the USPTO roster since
November 2021

David William Old is a USPTO-registered patent agent (registration number 77309) at Maschoff Brennan, in Irvine, CA. The registration is active on the current USPTO roster, and David William Old has been listed on the roster since November 2021.

Maschoff Brennan has 19 registered patent practitioners on the roster (17 patent attorneys and 2 patent agents), so David William Old works alongside 18 other registered practitioners there.

Irvine, CA has 599 registered patent practitioners in all: 453 patent attorneys and 136 patent agents.

Other registered practitioners in Irvine, CA

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