Patent Assignment
Reel/Frame 019691/0316
Assignment of Assignor's Interest
Recorded: 2007-08-14
Pages: 2
Assignee
KNOWLEDGE FILTER, INC.
6910 SEBASTOPOL AVENUE, SEBASTOPOL, CALIFORNIA, 95472-3411
Covered Property
(1)
Knowledge Filter
Patent:
7,590,636 →
Application:
11/348,037 →
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 3, 2008
From: KNOWLEDGEFILTER, INC.
To: KL INTERNET APPLICATIONS, LLC
Reel/Frame 020309/0676 →
Merger
Dec 2, 2015
From: KL INTERNET APPLICATIONS, LLC
To: CHARTOLEAUX KG LIMITED LIABILITY COMPANY
Reel/Frame 037188/0199 →
Nunc Pro Tunc Assignment
Jan 17, 2019
From: CHARTOLEAUX KG LIMITED LIABILITY COMPANY
To: INTELLECTUAL VENTURES ASSETS 117 LLC
Reel/Frame 048054/0302 →
Assignment of Assignor's Interest
Jul 10, 2020
From: INTELLECTUAL VENTURES ASSETS 117 LLC
To: SLINGSHOT TECHNOLOGIES LLC
Reel/Frame 053175/0370 →
Assignment of Assignor's Interest
Jan 26, 2021
From: SLINGSHOT TECHNOLOGIES LLC
To: GRAVEL RATING SYSTEMS LLC
Reel/Frame 055037/0601 →