IP Library › Assignment 049382/0943
Patent Assignment
Reel/Frame 049382/0943

Assignment of Assignor's Interest

Recorded: 2019-06-05 Pages: 4
Assignors
SONG, BAOJUN
Executed: 2019-03-20
BAILLARGEON, DAVID S.
Executed: 2019-03-20
Assignee
APERGY ESP SYSTEMS, LLC
19425 E 54TH ST S, BROKEN ARROW, OKLAHOMA, 74014-1603
Covered Property (1)
Downhole centrifugal pump diffuser with protuberant vanes
Application: 16/361,549 →
Publication: US 2020/0300265
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest Apr 30, 2021
From: APERGY ESP SYSTEMS, LLC; APERGY BMCS ACQUISITION CORPORATION; CHAMPIONX USA INC.; HARBISON-FISCHER, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 056106/0007 →
Merger Dec 20, 2023
From: APERGY ESP SYSTEMS, LLC
To: APERGY PROCESS COMPANIES. LLC
Reel/Frame 065918/0734 →
Merger Dec 20, 2023
From: APERGY PROCESS COMPANIES. LLC
To: CHAMPIONX LLC
Reel/Frame 065918/0824 →
Release of Security Interest in Patents Jul 17, 2025
From: JPMORGAN CHASE BANK, N.A.
To: CHAMPIONX LLC; APERGY ESP SYSTEMS, LLC; APERGY BMCS ACQUISITION CORP; HARBISON-FISCHER, INC.
Reel/Frame 072004/0019 →