Donald T. Black

Patent attorney, USPTO registration number 27999, status Active.

Firm

Praxair INC

Location

Danbury, CT

On the USPTO roster since

before May 2006

Donald T. Black is a USPTO-registered patent attorney (registration number 27999) at Praxair INC, in Danbury, CT. The registration is active on the current USPTO roster, and Donald T. Black has been listed on the roster since before May 2006.

Praxair INC has 9 registered patent practitioners on the roster (7 patent attorneys and 2 patent agents), so Donald T. Black works alongside 8 other registered practitioners there.

Danbury, CT has 17 registered patent practitioners in all: 13 patent attorneys and 4 patent agents.

Other registered practitioners in Danbury, CT

• Jiangping Wu — Patent agent, Reg. No. 56931, Boehringer-Ingelheim, Inc.
• James P. Breen — Patent agent, Reg. No. 75235
• Thelma A Chen Cleland — Patent agent, Reg. No. 40948, MannKind CORP
• Nilay S. Dalal — Patent agent, Reg. No. 56069, Brinks ,Hofer ,Gilson & Lione
• Jack E. Haken — Patent attorney, Reg. No. 26902, Philips Electronics North America CORP
• Marylin Klosty — Patent attorney, Reg. No. 18137
• Robert John Kraus — Patent attorney, Reg. No. 26358, Robert J. Kraus
• Brian A. Lemm — Patent attorney, Reg. No. 43748, Pitney Bowes INC

All patent attorneys and agents in Danbury, CT

Patent firms in Connecticut · Practitioners by state

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