Abhijeet Jayant Karkamkar from 2339 Davison Ave, Richland, WA 99354, age 49

Bulk-Scaffolded Hydrogen Storage And Releasing Materials And Methods For Preparing And Using Same
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US Patent:

7963116, Jun 21, 2011
Filed:

May 4, 2009
Appl. No.:

12/435268
Inventors:

S. Thomas Autrey - West Richland WA, US
Abhijeet J. Karkamkar - Richland WA, US
Anna Gutowska - Richland WA, US
Liyu Li - Richland WA, US
Xiaohong S. Li - Richland WA, US
Yongsoon Shin - Richland WA, US
Assignee:

Battelle Memorial Institute - Richland WA
International Classification:

H01M 8/06
F03G 7/00
C01B 3/02
C01B 3/04
US Classification:

60721, 25218825, 4236481, 429416, 429421
Abstract:

Compositions are disclosed for storing and releasing hydrogen and methods for preparing and using same. These hydrogen storage and releasing materials exhibit fast release rates at low release temperatures without unwanted side reactions, thus preserving desired levels of purity and enabling applications in combustion and fuel cell applications.

Process For Synthesis Of Ammonia Borane For Bulk Hydrogen Storage
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US Patent:

20090291039, Nov 26, 2009
Filed:

Apr 28, 2009
Appl. No.:

12/431496
Inventors:

S. Thomas Autrey - West Richland WA, US
David J. Heldebrant - Richland WA, US
John C. Linehan - Richland WA, US
Abhijeet J. Karkamkar - Richland WA, US
Feng Zheng - Richland WA, US
Assignee:

BATTELLE MEMORIAL INSTITUTE - Richland WA
International Classification:

C01B 35/14
US Classification:

423285
Abstract:

The present invention discloses new methods for synthesizing ammonia borane (NHBH, or AB). Ammonium borohydride (NHBH) is formed from the reaction of borohydride salts and ammonium salts in liquid ammonia. Ammonium borohydride is decomposed in an ether-based solvent that yields AB at a near quantitative yield. The AB product shows promise as a chemical hydrogen storage material for fuel cell powered applications.

Process And Composition For Controlling Foaming In Bulk Hydrogen Storage And Releasing Materials
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US Patent:

20090302269, Dec 10, 2009
Filed:

Jun 2, 2009
Appl. No.:

12/477040
Inventors:

Daiwon Choi - Richland WA, US
Abhijeet J. Karkamkar - Richland WA, US
S. Thomas Autrey - West Richland WA, US
Christopher L. Aardahl - Richland WA, US
Assignee:

BATTELLE MEMORIAL INSTITUTE - Richland WA
International Classification:

C01B 3/02
C09K 3/00
US Classification:

25218825
Abstract:

New methods and compositions are disclosed that minimize foaming in hydrogen-releasing materials. Foaming can be minimized during release of hydrogen in composites that include structured forms such as wafers and discs. Change tolerances of from 0% to 25% in solid products described show promise for next-generation fuel elements and devices.

Compositions And Methods For Polarization-Switched, Solid-State Molecular Pumping
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US Patent:

20190157012, May 23, 2019
Filed:

Nov 1, 2018
Appl. No.:

16/177647
Inventors:

- Richland WA, US
Evgueni Polikarpov - Richland WA, US
Abhijeet J. Karkamkar - Richland WA, US
Gregory W. Coffey - Richland WA, US
Satish K. Nune - Richland WA, US
Phillip K. Koech - Richland WA, US
Bernard P. McGrail - Pasco WA, US
John A. Roberts - Pasco WA, US
Assignee:

BATTELLE MEMORIAL INSTITUTE - Richland WA
International Classification:

H01G 9/022
H01G 9/042
H01G 9/20
H05K 7/20
G02F 1/1523
G02F 1/155
G02F 1/163
Abstract:

Disclosed are methods and compositions for alternatingly adsorbing and desorbing sorbate molecules by changing the adsorption affinity of polarizable molecular sorbent molecules attached to surfaces of conductors, attached to dielectric materials between the conductors, or attached to both. The conductors and optionally a dielectric material can be arranged as a capacitor.

Abhijeet Jayant Karkamkar