Patent Assignment
Reel/Frame 029469/0876
Security Agreement
Recorded: 2012-12-14
Pages: 7
Assignors
DEFENDER SECURITY CANADA, INC.
Executed: 2012-12-13
DEFENDER SECURITY COMPANY
Executed: 2012-12-13
WINBACK INC.
Executed: 2012-12-13
WILLIAMS COMFORT AIR INC.
Executed: 2012-12-13
DPL ONE LLC
Executed: 2012-12-13
DPL TWO LLC
Executed: 2012-12-13
DOTHOME ACQUISITION GROUP, LLC
Executed: 2012-12-13
Assignee
KEYBANK NATIONAL ASSOCIATION
4900 TIEDEMAN ROAD, 1ST FLOOR SE, OH-01-49-0114, ATTENTION: KNB AGENCY SERVICES, BROOKLYN, OHIO, 44144
Covered Properties
(3)
Vertizontal Geothermal Loop and Installation Method
Patent:
8,256,531 →
Application:
12/536,723 →
Bit Adapter and Tube Return for Vertizontal Geothermal Loop
Vertizontal Geothermal Loop and Installation Method
Related Assignments
(11)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 10, 2009
From: BIGGS, TERRY R.; HUCK, JOSEPH A.
To: WILLIAMS COMFORT AIR, INC.
Reel/Frame 023082/0736 →
Assignment of Assignor's Interest
Sep 20, 2010
From: BIGGS, TERRY R.; HUCK, JOSEPH A.; EDWARDS, BLAKE E.
To: WILLIAMS COMFORT AIR, INC.
Reel/Frame 025010/0611 →
Assignment of Assignor's Interest
Sep 9, 2011
From: BIGGS, TERRY R.; HUCK, JOSEPH A.
To: WILLIAMS COMFORT AIR, INC.
Reel/Frame 026880/0948 →
Change of Name
Jul 18, 2013
From: WILLIAMS COMFORT AIR, INC.
To: TRUE.HOME HEATING/COOLING, INC.
Reel/Frame 030822/0481 →
Release of Security Interest
Mar 6, 2015
From: KEYBANK NATIONAL ASSOCIATION
To: TRUE.HOME HEATING|COOLING, INC. FORMERLY KNOWN AS WILLIAMS COMFORT AIR, INC.
Reel/Frame 035099/0166 →
Assignment of Assignor's Interest
Mar 6, 2015
From: TRUE.HOME HEATING|COOLING, INC. FORMERLY KNOWN AS WILLIAMS COMFORT AIR, INC.
To: WCA GROUP, LLC
Reel/Frame 035099/0220 →
First Lien Patent Security Agreement
Jul 30, 2021
From: WCA GROUP, LLC
To: JEFFERIES FINANCE LLC, AS THE COLLATERAL AGENT
Reel/Frame 057038/0067 →
Security Interest
Jul 30, 2021
From: WCA GROUP, LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 057035/0156 →
Release of Security Interest in Intellectual Property Collateral
Sep 3, 2025
From: JEFFERIES FINANCE LLC
To: WCA GROUP, LLC
Reel/Frame 072828/0244 →
Release of Security Interest Recorded at Reel/Frame 57035/0156
Sep 4, 2025
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: WCA GROUP, LLC
Reel/Frame 072813/0172 →
Patent Security Agreement
Sep 4, 2025
From: WCA GROUP, LLC
To: BLUE OWL CAPITAL CORPORATION
Reel/Frame 072806/0534 →