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USPTO Patent Rankings Data through Dec 31, 2025
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Claus R. Engel — 1 Patent

DADegussa Ag: 1 patents #925 of 2,007Top 50%
Bad Breisig, DE: #9 of 22 inventorsTop 45%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Claus R. Engel has been granted 1 US patent while listed as an inventor at Degussa Ag. All of these patents were granted in 1986. Claus R. Engel ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Claus R. Engel in Bad Breisig, DE.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4615852 Method for producing nitrocellulose-based carbon black concentrates in the form of chips Lutz Dworowy 1986-10-07