Patent Assignment
Reel/Frame 055589/0578
Assignment of Assignor's Interest
Recorded: 2021-03-15
Pages: 2
Assignor
LANDRUM, DAMON T.
Executed: 2021-03-12
Assignee
ABACO DRILLING TECHNOLOGIES, LLC
713 NORTHPARK CENTRAL DRIVE #400, HOUSTON, TEXAS, 77073
Covered Property
(1)
Pdm Transmission with Sliding Contact Between Convex Shaft Pins and Concave Bearings Surfaces
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 15, 2021
From: LU, JING
To: ABACO DRILLING TECHNOLOGIES, LLC
Reel/Frame 055589/0636 →
Assignment of Assignor's Interest
Mar 15, 2021
From: CARIVEAU, PETER THOMAS
To: ABACO DRILLING TECHNOLOGIES, LLC
Reel/Frame 055589/0747 →
Release of Security Interest (Reel/Frame 68812/0085)
Jan 30, 2026
From: BANK OF AMERICA N.A.
To: ABACO DRILLING TECHNOLOGIES LLC
Reel/Frame 074537/0681 →
Security Interest
Mar 2, 2026
From: ABACO DRILLING TECHNOLOGIES LLC
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 073940/0632 →
Security Interest
Mar 2, 2026
From: ABACO DRILLING TECHNOLOGIES LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 073943/0927 →
Corrective Assignment to Correct the the Record by Removing Patent 10335694 Previously Recorded on Reel 74537 Frame 681. Assignor(S) Hereby Confirms the Release of Security Interest.
May 7, 2026
From: BANK OF AMERICA, N.A.
To: ABACO DRILLING TECHNOLOGIES LLC
Reel/Frame 075561/0630 →