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USPTO Patent Rankings Data through Dec 31, 2025
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Charles E. Neff — 19 Patents

TLTrw Limited: 2 patents #579 of 2,166Top 30%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Clinton Township, MI: #8 of 448 inventorsTop 2%
Michigan: #4,375 of 86,293 inventorsTop 6%
Overall (All Time): #229,345 of 4,157,543Top 6%
19 Patents All Time
Charles E. Neff has been granted 19 US patents while listed as an inventor at Trw Limited. The first was granted in 1989 and the most recent in June 2025. Charles E. Neff ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list Charles E. Neff in Clinton Township, MI, US.

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12325107 Texture pattern for abrasive tool — 2025-06-10
12017329 Grinding wheel with different work surfaces — 2024-06-25
11040430 Texture pattern for abrasive tool — 2021-06-22
7347769 Method of fabricating pliant workpieces, tools for performing the method and methods for making those tools — 2008-03-25
6997790 Method of fabricating pliant workpieces, tools for performing the method and methods for making those tools — 2006-02-14
D514464 Safety cone for warning of slippery conditions — 2006-02-07
D467513 Safety cone for warning of slippery conditions — 2002-12-24
6120568 Article and a method for producing an article having a high friction surface — 2000-09-19
6083631 Article and a method and apparatus for producing an article having a high friction surface — 2000-07-04
5891204 Article and a method for producing an article having a high friction surface — 1999-04-06
5888129 Grinding wheel — 1999-03-30
5578099 Article and method for producing an article having a high friction surface — 1996-11-26
5496208 Grinding wheel — 1996-03-05
5354999 Leak detection achieved by detection of light transmitted through an opaque layer interrupted by a passing bubble — 1994-10-11
5336279 Article and a method for producing an article having a high friction surface — 1994-08-09
5213590 Article and a method for producing an article having a high friction surface — 1993-05-25
5181939 Article and a method for producing an article having a high friction surface — 1993-01-26
4858712 Speed responsive power steering system — 1989-08-22 $4,987,000
4828237 Reduced length MacPherson strut — 1989-05-09 $4,910,000

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