Patent Assignment
Reel/Frame 074440/0984
Security Interest
Recorded: 2026-04-22
Pages: 9
Assignor
AQUATECH INTERNATIONAL, LLC
Executed: 2026-04-21
Assignee
BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
GATEWAY VILLAGE-900 BUILDING, 900 W TRADE STREET, CHARLOTTE, NORTH CAROLINA, 28255
Covered Properties
(23)
Process for Recovery of Lithium from Brine
Application:
18/872,836 →
Mitigation of Contamination of Lithium Selective Media in a Direct Lithium Extraction Process
Application:
19/041,369 →
Publication:
US 2025/0250653
Process for Selective Purification of Lithium from an Aqueous Lithium Salt-Containing Solution
Application:
18/426,376 →
Publication:
US 2024/0279771
Method for Improving Lithium Yield in a Direct Lithium Extraction Process
Application:
19/042,027 →
Publication:
US 2025/0249465
Process for Obtaining High Purity Lithium from an Aqueous Lithium Salt-Containing Solution
Application:
18/664,346 →
Publication:
US 2024/0391787
Process of Mitigation and Control of Biofilm
Application:
18/056,985 →
Publication:
US 2023/0159358
Advanced Granular Sludge Bed Reactor
Application:
18/583,350 →
Publication:
US 2024/0286939
Membrane Process for Wastewater Recycling and Solvent Recovery
Application:
18/827,266 →
Publication:
US 2025/0083979
Method and System for Extracting Lithium Salt with Improved Water Balance
Application:
19/273,697 →
Publication:
US 2026/0022024
Method for Preparing an Ion Exchange Media
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
Method for Recycling Deoiled Water Using Counterflow Falling-Film Evaporators
Split Flow Edi Apparatus for Treating Second Pass Ro Permeate Water with High Flow Rate
Preparation of High Performance Ultra Filtration Hollow Fiber Membrane
Process for Purification of Produced Water
Low Energy Reverse Osmosis Process
Method for Production of High Purity Distillate from Produced Water for Generation of High Pressure Steam
Method and Apparatus for Recycling Water
Method and Apparatus for Advanced Vacuum Membrane Distillation
Method and Apparatus for Selenium Removal from High Tds Wastewater
Method of Treating High Strength Wastewater by Anaerobic Bio Reactor
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
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
Nov 25, 2013
From: CHIDAMBARAN, RAVI
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 031669/0136 →
Acknowledgement of Security Interest in Patents
Mar 12, 2014
From: AQUATECH INTERNATIONAL CORPORATION; QUA GROUP, LLC; AQUATECH INTERNATIONAL SALES CORPORATION
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 032438/0071 →
Assignment of Assignor's Interest
Aug 26, 2014
From: CHIDAMBARAN, RAVI; BISHT, NARENDRA SINGH; RAINA, PAVAN
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 033608/0528 →
Assignment of Assignor's Interest
Jun 4, 2015
From: MANDIGO, GREGORY J; BJORKLUND, DANIEL
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 035783/0483 →
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: BJORKLUND, DANIEL P.; MANDIGO, GREGORY J.; SCHOEN, RICHARD M.; MARLETT, JAMES MICHAEL
To: AQUATECH INTERNATIONAL CORPORATION
Reel/Frame 038221/0131 →
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 →
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 →
Assignment of Assignor's Interest
Nov 18, 2022
From: CHIDAMBARAN, RAVI
To: AQUATECH INTERNATIONAL, LLC
Reel/Frame 061828/0653 →
Assignment of Assignor's Interest
Feb 14, 2024
From: COLLIAS, CONSTANTINE; BOOTSMA, JASON ALAN; SHAY, DANIEL TRAVIS
To: KOCH TECHNOLOGY SOLUTIONS, LLC
Reel/Frame 066466/0272 →
Assignment of Assignor's Interest
Jul 3, 2024
From: COLLIAS, CONSTANTINE
To: ECO-TEC INC.
Reel/Frame 067901/0203 →
Assignment of Assignor's Interest
Jul 3, 2024
From: ECO-TEC INC.
To: KOCH TECHNOLOGY SOLUTIONS, LLC
Reel/Frame 067901/0209 →
Assignment of Assignor's Interest
Jul 3, 2024
From: BOOTSMA, JASON ALAN; SHAY, DANIEL TRAVIS; CAMPBELL, TIMOTHY JUDE
To: KOCH TECHNOLOGY SOLUTIONS, LLC
Reel/Frame 067901/0218 →
Assignment of Assignor's Interest
Jul 24, 2024
From: CHIDAMBARAN, RAVI; CHANDAN, NITIN; SINGH BISHT, NARENDRA; VISHWAS PHALKE, VISHAL
To: AQUATECH INTERNATIONAL, LLC
Reel/Frame 068070/0168 →
Assignment of Assignor's Interest
Jan 30, 2025
From: SHAY, DANIEL TRAVIS; COLLIAS, CONSTANTINE; BOOTSMA, JASON ALAN; CAMPBELL, TIMOTHY JUDE
To: KOCH TECHNOLOGY SOLUTIONS, LLC
Reel/Frame 070064/0152 →
Assignment of Assignor's Interest
Feb 5, 2025
From: CHIDAMBARAN, RAVI; BISHT, NARENDRA SINGH; CHANDAN, NITIN; RAO, D.V.R. SESHAGIRI
To: AQUATECH INTERNATIONAL, LLC
Reel/Frame 070113/0738 →
Assignment of Assignor's Interest
Feb 25, 2025
From: COLLIAS, CONSTANTINE; SHAY, DANIEL TRAVIS; AREEF, MOHAMED YEHIA
To: KOCH TECHNOLOGY SOLUTIONS, LLC
Reel/Frame 070312/0678 →