Patent Assignment
Reel/Frame 005338/0009
Assignment of Assignors Interest.
Recorded: 1990-06-08
Pages: 4
Assignor
D & D COMPANY LTD.
Executed: 1990-03-30
Assignee
TROTT, DONALD E.
331 BLANKS RD., TIOGA, TEXAS, 76271
Covered Properties
(3)
Title Not Available
Application:
05/836,758 →
Casing Perforation Method and Apparatus
Patent:
30,829 →
Application:
06/062,014 →
Casing Perforation Method and Apparatus
Patent:
4,375,834 →
Application:
06/276,945 →
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 12, 2018
From: KOBAYASHI, RUTH
To: DUMMEN GROUP B. V.
Reel/Frame 045126/0876 →
Assignment of Assignor's Interest
Dec 4, 2021
From: PLANT 21 LLC
To: WINGEN, LLC
Reel/Frame 058303/0069 →
Intellectual Property Security Agreement
Aug 14, 2024
From: DÜMMEN GROUP B.V.; DÜMMEN ORANGE JUNGPFLANZEN GMBH & CO. KG; DÜMMEN NA, INC.
To: KROLL TRUSTEE SERVICES LIMITED, AS SECURITY AGENT
Reel/Frame 068790/0081 →