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USPTO Patent Rankings Data through Dec 31, 2025
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Johan E. DeWitte — 4 Patents

3M: 4 patents #3,453 of 11,543Top 30%
Malle, BE: #5 of 13 inventorsTop 40%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Johan E. DeWitte has been granted 4 US patents while listed as an inventor at 3M. The first was granted in 1998 and the most recent in April 2002. Johan E. DeWitte ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Johan E. DeWitte in Malle, BE.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6365769 Perfluoroalkyl halides and derivatives Frederick E. Behr, Rudolf J. Dams, Donald F. Hagen 2002-04-02 $21,470,000
6309752 Substrate having high initial water repellency and a laundry durable water repellency Rudolf J. Dams, Christoffel C. Maes 2001-10-30 $37,727,000
6048952 Perfluoroalkyl halides and derivatives Frederick E. Behr, Rudolf J. Dams, Donald F. Hagen 2000-04-11 $49,724,000
5852148 Perfluoroalkyl halides and derivatives Frederick E. Behr, Rudolf J. Dams, Donald F. Hagen 1998-12-22 $15,100,000