Patent Assignment
Reel/Frame 006829/0644
Assignment of Assignor's Interest
Recorded: 1994-01-03
Pages: 3
Assignee
GUNN, DONALD, ESQ.
GUNN & KUFFNER, 5 GREENWAY PLAZA, STE. 2900 =, HOUSTON, TEXAS, 77046
Covered Property
(1)
A System for Identifying and Quantifying Selected Constituents of Gas Samples Using Selective Photoionization
Patent:
5,394,092 →
Application:
08/176,968 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Corrective Assignment to Correct Assignee's Name. an Assignment Was Previously Recorded at Reel 6829, Frames 644-646.
Mar 24, 1994
From: WENTWORTH, WAYNE E.; STEARNS, STANLEY D.
To: VALCO INSTRUMENT COMPANY
Reel/Frame 006990/0980 →
Conversion of Corporate Entity
Apr 30, 2010
From: VALCO INSTRUMENTS CO., INC.
To: VALCO INSTRUMENTS CO., L.P.
Reel/Frame 024320/0129 →