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USPTO Patent Rankings Data through Dec 31, 2025
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David C. Bays — 2 Patents

3M: 2 patents #5,350 of 11,543Top 50%
Loughton, GB: #18 of 52 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David C. Bays has been granted 2 US patents while listed as an inventor at 3M. The first was granted in 1996 and the most recent in September 1997. David C. Bays ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David C. Bays in Loughton, GB.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5663042 Developing agents for (photo) thermographic systems Duncan M. A. Grieve, Justine A. Mooney, William E. Bottomley, John H. A. Stibbard, Andrew Mott +9 more 1997-09-02 $15,541,000
5492803 Hydrazide redox-dye-releasing compounds for photothermographic elements Kevin D. Landgrebe, Doreen C. Lynch, Sharon M. Simpson, Justine A. Mooney, Andrew Mott +4 more 1996-02-20 $11,988,000