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

Jeffrey K. Chambers — 27 Patents

DADaramic: 24 patents #3 of 57Top 6%
DADanaher: 3 patents #671 of 2,950Top 25%
Rock Hill, TN: #1 of 8 inventorsTop 15%
Tennessee: #450 of 20,272 inventorsTop 3%
Overall (All Time): #142,059 of 4,157,543Top 4%
27 Patents All Time
Jeffrey K. Chambers has been granted 27 US patents while listed as an inventor at Daramic. The first was granted in 1992 and the most recent in February 2025. Jeffrey K. Chambers ranks #142,059 of 4,157,543 US inventors in our database (top 3.4%). Patent records list Jeffrey K. Chambers in Rock Hill, TN, US.

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12215228 Separators, batteries, systems, and methods for idle start stop vehicles J. Kevin Whear, John R. Timmons, Tejas R. Shah 2025-02-04
12159976 Oxidation protected separator Eric H. Miller, J. Kevin Whear 2024-12-03
12125988 Water loss separators used with lead acid batteries, systems for improved water loss performance, and methods of manufacture and use thereof 2024-10-22
12051783 Lead-acid battery separators, electrodes, batteries, and methods of manufacture and use thereof J. Kevin Whear, James P. Perry, Larry A. Spickard, John R. Timmons 2024-07-30
11976197 Separators, batteries, systems, and methods for idle start stop vehicles J. Kevin Whear, John R. Timmons, Tejas R. Shah 2024-05-07
11942656 Battery separators, batteries and related methods Surendra Kumar Mittal, Jörg Deiters 2024-03-26
11916252 Vapor pressure barriers for lead acid batteries for improved water loss performance, separators, systems, and methods of manufacture and use thereof Margaret R. Roberts, James P. Perry, J. Kevin Whear 2024-02-27
11881593 Vapor pressure barriers for lead acid batteries for improved water loss performance, separators, systems, and methods of manufacture and use thereof Margaret R. Roberts, James P. Perry, J. Kevin Whear 2024-01-23
11840632 Batteries, separators, components, and compositions with heavy metal removal capability and related methods Tejas R. Shah 2023-12-12
11539084 Water loss separators used with lead acid batteries, systems for improved water loss performance, and methods of manufacture and use thereof 2022-12-27
11302991 Oxidation protected separator Eric H. Miller, J. Kevin Whear 2022-04-12
11208558 Batteries, separators, components, and compositions with heavy metal removal capability and related methods Tejas R. Shah 2021-12-28
11152647 Lead-acid battery separators, electrodes, batteries, and methods of manufacture and use thereof J. Kevin Whear, James P. Perry, Larry A. Spickard, John R. Timmons 2021-10-19
11104804 Separators, batteries, systems, and methods for idle start stop vehicles J. Kevin Whear, John R. Timmons, Tejas R. Shah 2021-08-31
10673099 Water loss separators used with lead acid batteries, systems for improved water loss performance, and methods of manufacture and use thereof 2020-06-02
10329425 Batteries, separators, components and compositions with heavy metal removal capability and related methods Tejas R. Shah 2019-06-25
10119025 Separators, batteries, systems, and methods for idle start stop vehicles J. Kevin Whear, John R. Timmons, Tejas R. Shah 2018-11-06
10116007 Lead-acid battery separators, electrodes, batteries, and methods of manufacture and use thereof J. Kevin Whear, James P. Perry, Larry A. Spickard, John R. Timmons 2018-10-30
9991487 Oxidation protected separator Eric H. Miller, J. Kevin Whear 2018-06-05
9979054 Water loss separators used with lead acid batteries, systems for improved water loss performance, and methods of manufacture and use thereof 2018-05-22
9698401 Embossed separators, batteries and methods Eric H. Miller, John R. Timmons 2017-07-04
9683101 Batteries, separators, components, and compositions with heavy metal removal capability and related methods Tejas R. Shah 2017-06-20
9461291 Embossed separators, batteries and methods Eric H. Miller, John R. Timmons 2016-10-04
9190648 Lead-acid battery separator having enhanced stiffness J. Kevin Whear, Mohammed Naiha, Tejas R. Shah 2015-11-17
5271842 Contaminant removal system and process Peter J. Degen, John Gerringer 1993-12-21 $8,367,000