Patent Assignment
Reel/Frame 006366/0612
Assignment of Assignors Interest.
Recorded: 1992-12-16
Pages: 4
Assignor
BIERMAN, PAUL E.
Executed: 1992-12-10
Assignee
TDW DELAWARE, INC.
1100 MARKET STREET SUITE 780, WILMINGTON, DELAWARE, 19801
Covered Property
(1)
Bidirectional Pipeline Pig Signaling Device
Patent:
5,279,251 →
Application:
07/991,197 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.