Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JE

James Epstein — 21 Patents

FSFastcap Systems: 9 patents #9 of 27Top 35%
BEBattery Engineering: 5 patents #2 of 8Top 25%
GIGte Laboratories Incorporated: 3 patents #136 of 474Top 30%
The General Hospital: 1 patents #1,411 of 3,021Top 50%
Sharon, MA: #43 of 848 inventorsTop 6%
Massachusetts: #5,325 of 88,656 inventorsTop 7%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
James Epstein has been granted 21 US patents while listed as an inventor at Fastcap Systems. The first was granted in 1980 and the most recent in December 2024. James Epstein ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list James Epstein in Sharon, MA, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12165806 Advanced electrolyte systems and their use in energy storage devices Fabrizio Martini, Riccardo Signorelli, John J. Cooley, Christopher John Sibbald Deane, Padmanaban Sasthan Kuttipillai +1 more 2024-12-10
11901123 High temperature energy storage device Riccardo Signorelli, John J. Cooley, Christopher John Sibbald Deane, Padmanaban Sasthan Kuttipillai, Fabrizio Martini +1 more 2024-02-13
11776765 Advanced electrolyte systems and their use in energy storage devices Fabrizio Martini, Riccardo Signorelli, John J. Cooley, Christopher John Sibbald Deane, Padmanaban Sasthan Kuttipillai +1 more 2023-10-03
11482384 High temperature energy storage device Riccardo Signorelli, John J. Cooley, Christopher John Sibbald Deane, Padmanaban Sasthan Kuttipillai, Fabrizio Martini +1 more 2022-10-25
11250995 Advanced electrolyte systems and their use in energy storage devices Fabrizio Martini, Riccardo Signorelli, John J. Cooley, Christopher John Sibbald Deane, Padmanaban Sasthan Kuttipillai +1 more 2022-02-15
10714271 High temperature energy storage device Riccardo Signorelli, John J. Cooley, Christopher John Sibbald Deane, Padmanaban Sasthan Kuttipillai, Fabrizio Martini +1 more 2020-07-14
10486990 Device for use with drains Justin R. Nifong 2019-11-26
9994465 Device for use with floor drains Paul Bradley Forrest 2018-06-12
9558894 Advanced electrolyte systems and their use in energy storage devices Riccardo Signorelli, John J. Cooley, Christopher John Sibbald Deane, Padmanaban Sasthan Kuttipillai, Fabrizio Martini +1 more 2017-01-31
9209434 Mechanical hermetic seal 2015-12-08
8932750 Aluminum housing with a hermetic seal John J. Cooley, Riccardo Signorelli, Christopher J.S. Deane 2015-01-13
D669969 Drain insert Paul Bradley Forrest 2012-10-30
5661126 Use of mullerian inhibiting substance for treating certain tumors and for modulating class I major histocompatibility antigen expression Patricia K. Donahoe, Tai Wai Chin, Robert L. Parry, Richard C. Ragin, David T. MacLaughlin +1 more 1997-08-26
5318600 Method for making a lithium anode for an electrochemical cell Carl R. Schlaikjer, Sean T. Riley 1994-06-07
4574472 Method and apparatus for inserting electrodes into the container of an electrochemical cell Nikola Marincic 1986-03-11
4507857 Electrochemical cell Nikola Marincic 1985-04-02
4352768 Fiber reinforced cathode for electrochemical cell 1982-10-05 $4,257,000
4293622 Step cell Nikola Marincic 1981-10-06
4252873 Seal for electrochemical cell Nikola Marincic 1981-02-24
4209571 Primary electrochemical cell Richard A. Bessett, Franz Goebel 1980-06-24 $8,165,000
4182028 Hermetically sealed button-type electrochemical cell and method for making same Nikola Marincic 1980-01-08 $4,097,000