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USPTO Patent Rankings Data through Dec 31, 2025
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Robert W. Saffel — 12 Patents

DADaramic: 11 patents #7 of 57Top 15%
Rockport, IN: #1 of 12 inventorsTop 9%
Indiana: #3,005 of 33,936 inventorsTop 9%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Robert W. Saffel has been granted 12 US patents while listed as an inventor at Daramic. The first was granted in 1989 and the most recent in August 2025. Robert W. Saffel ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Robert W. Saffel in Rockport, IN, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
12394867 Lead acid battery separators, warp resistant separators, batteries, systems, and related methods Eric H. Miller, Sterling Tucker Roe, William L. Walter, Naoto Miyake 2025-08-19
12388155 Separators for enhanced flooded batteries, batteries, and related methods Mohammed Naiha, Jörg Deiters, Ahila Krishnamoorthy, Eric H. Miller, J. Kevin Whear +2 more 2025-08-12
12334586 Composite layers or separators for lead acid batteries Ahila Krishnamoorthy, Kumar Manickam 2025-06-17
11996582 Separators for VRLA batteries and methods relating thereto Eric H. Miller 2024-05-28
11843126 Separators for enhanced flooded batteries, batteries, and related methods Mohammed Naiha, Jörg Deiters, Ahila Krishnamoorthy, Eric H. Miller, J. Kevin Whear +2 more 2023-12-12
11652260 Composite layers or separators for lead acid batteries Ahila Krishnamoorthy, Kumar Manickam 2023-05-16
11502374 Separators for enhanced flooded batteries, batteries, and related methods Mohammed Naiha, Jörg Deiters, Ahila Krishnamoorthy, Eric H. Miller, J. Kevin Whear +2 more 2022-11-15
11145934 Composite layers or separators for lead acid batteries Ahila Krishnamoorthy, Kumar Manickam 2021-10-12
10811655 Separators for enhanced flooded batteries, batteries, and related methods Mohammed Naiha, Joerg Deiters, Ahila Krishnamoorthy, Eric H. Miller, J. Kevin Whear +2 more 2020-10-20
10770704 Separators for VRLA batteries and methods relating thereto Eric H. Miller 2020-09-08
10141556 Separators for VRLA batteries and methods relating thereto Eric H. Miller 2018-11-27
4859519 Method and apparatus for preparing textured apertured film Alex W. Cabe, Jr., Arthur J. Sampson 1989-08-22