Patent Assignment
Reel/Frame 032438/0071
Acknowledgement of Security Interest in Patents
Recorded: 2014-03-12
Pages: 10
Assignors
AQUATECH INTERNATIONAL CORPORATION
Executed: 2014-03-07
QUA GROUP, LLC
Executed: 2014-03-07
AQUATECH INTERNATIONAL SALES CORPORATION
Executed: 2014-03-07
Assignee
PNC BANK, NATIONAL ASSOCIATION
249 FIFTH AVENUE, PITTSBURGH, PENNSYLVANIA, 15222
Covered Properties
(22)
Settling Chamber for Separation of Large, Plugging Particles Upstream of a Hydroclone
PCT:
PCT/US2013/022181 ↗
Low Energy Reverse Osmosis Process
PCT:
PCT/US2013/037744 ↗
Water Treatment Process
PCT:
PCT/US2013/071236 ↗
Method and Apparatus for Recycling Water
PCT:
PCT/US2013/075973 ↗
Fractional Deionization Process
Method and Apparatus for High Efficiency Evaporation Operation
Method for Production of High Pressure Steam from Produced Water
Method for Preparing an Ion Exchange Media
Fractional Deionization Process
Method for Preparing an Ion Exchange Media
Method for Treatment of High Ph/Silica Brines
Preparation of High Performance Ultra Filtration Hollow Fiber Membrane
Method for Production of High Purity Distillate from Produced Water for Generation of High Pressure Steam
Advanced Filtration Device for Water and Wastewater Treatment
Split Flow Edi Apparatus for Treating Second Pass Ro Permeate Water with High Flow Rate
Method for Recycling Deoiled Water Using Counterflow Falling-Film Evaporators
Preparation of High Performance Ultra Filtration Hollow Fiber Membrane
Neutralization and Precipitation of Silica from High pH Brines
Application:
13/561,258 →
Publication:
US 2013/0193077
Settling Chamber for Separation of Large, Plugging Particles Upstream of A Hydroclone
Application:
13/745,303 →
Publication:
US 2013/0186576
Process for Purification of Produced Water
Method for Production of High Purity Distillate from Produced Water for Generation of High Pressure Steam
Low Energy Reverse Osmosis Process
Related Assignments
(22)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 2, 2004
From: CHIDAMBARAN, RAVI; RAINA, PAVAN; SHARMA, DEVESH; BIST, NARENDRA
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 014814/0138 →
Assignment of Assignor's Interest
Jul 28, 2004
From: CHIDAMBARAN, RAVI; RAINA, PAVAN; SHARMA, DEVESH
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 014906/0874 →
Assignment of Assignor's Interest
Jul 21, 2006
From: MINNICH, KEITH R.; NICHOLSON, MARK C.; KARLAPUDI, RAMKUMAR; SCHOEN, RICHARD M.
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 017976/0450 →
Security Agreement
Aug 31, 2006
From: AQUATECH INTERNATIONAL CORPORATION
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 018194/0384 →
Assignment of Assignor's Interest
Jul 3, 2008
From: SCHOEN, RICHARD M.; TIWARI, CHANDRAKANT
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 021193/0920 →
Assignment of Assignor's Interest
Dec 1, 2010
From: BJORKLUND, DANIEL P.; MANDIGO, GREGORY J.; SCHOEN, RICHARD M.; MARLETT, JAMES MICHAEL
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 025414/0720 →
Assignment of Assignor's Interest
May 19, 2011
From: CHIDAMBARAN, RAVI; RAINA, PAVAN; DAS, SUGATA; CHANDAN, NITIN
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 026310/0246 →
Assignment of Assignor's Interest
Oct 31, 2011
From: CHIDAMBARAN, RAVI; SHARMA, DEVESH; RAINA, PAVAN; DAS, SUGATA
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 027145/0208 →
Assignment of Assignor's Interest
Dec 21, 2011
From: CHIDAMBARAN, RAVI; BISHT, NARENDRA SINGH; RAINA, PAVAN
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 027423/0767 →
Assignment of Assignor's Interest
Dec 21, 2011
From: BJORKLUND, DANIEL P.; KERSEY, DAVID; MANDIGO, GREGORY J.; TIWARI, CHANDRAKANT
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 027423/0435 →
Assignment of Assignor's Interest
Feb 5, 2013
From: CHIDAMBARAN, RAVI; RAINA, PAVAN; BISHT, NARENDRA SINGH
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 029755/0835 →
Assignment of Assignor's Interest
Aug 26, 2014
From: CHIDAMBARAN, RAVI; BISHT, NARENDRA SINGH; RAINA, PAVAN
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 033608/0528 →
Acknowledgement of Security Interest in Patents
Jul 10, 2015
From: AQUATECH INTERNATIONAL CORPORATION; QUA GROUP, LLC; AQUATECH INTERNATIONAL SALES CORPORATION
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 036089/0047 →
Assignment of Assignor's Interest
Mar 29, 2016
From: CHIDAMBARAN, RAVI; RAINA, PAVAN; SHARMA, DEVESH; BIST, NARENDRA
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 038125/0168 →
Assignment of Assignor's Interest
Apr 7, 2016
From: CHIDAMBARAN, RAVI; RAINA, PAVAN; SHARMA, DEVESH
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 038221/0453 →
Assignment of Assignor's Interest
Apr 7, 2016
From: CHIDAMBARAN, RAVI; SHARMA, DEVESH; RAINA, PAVAN; DAS, SUGATA
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 038220/0961 →
Change of Name
Jan 17, 2017
From: AQUATECH INTERNATIONAL CORPORATION
To: AQUATECH INTERNATIONAL, LLC
Reel/Frame 041379/0910 →
Amended and Restated Patent, Trademark and Copyright Security Agreement
Jan 17, 2017
From: AQUATECH INTERNATIONAL, LLC; QUA GROUP, LLC; AQUATECH INTERNATIONAL SALES CORPORATION; AQUATECH ENERGY SERVICES, LLC
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 041380/0058 →
Change of Name
Jun 30, 2017
From: AQUATECH INTERNATIONAL CORPORATION
To: AQUATECH INTERNATIONAL, LLC
Reel/Frame 043072/0139 →
Second Amended and Restated Patent, Trademark and Copyright Security Agreement
Mar 25, 2021
From: AQUATECH INTERNATIONAL, LLC; QUA GROUP, LLC; AQUATECH INTERNATIONAL SALES CORPORATION; AQUATECH ENERGY SERVICES, LLC
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 055736/0491 →
Security Interest
Apr 22, 2026
From: AQUATECH INTERNATIONAL, LLC
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 074440/0984 →
Release of Security Interest
May 1, 2026
From: PNC BANK, NATIONAL ASSOCIATION
To: AQUATECH INTERNATIONAL CORPORATION; QUA GROUP, LLC; AQUATECH INTERNATIONAL SALES CORPORATION; AQUATECH INTERNATIONAL, LLC
Reel/Frame 075312/0234 →