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USPTO Patent Rankings Data through Dec 31, 2025
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Erwin Bretscher — 2 Patents

IBM: 2 patents #32,909 of 70,183Top 50%
Rapperswil, CH: #46 of 136 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Erwin Bretscher has been granted 2 US patents while listed as an inventor at IBM. The first was granted in 1985 and the most recent in May 1986. Erwin Bretscher ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Erwin Bretscher in Rapperswil, CH.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4591540 Method of transferring a pattern into a radiation-sensitive layer Harald Bohlen, Helmut Engelke, Peter Nehmiz, Peter Vettiger, Johann Greschner 1986-05-27 $19,603,000
4500790 System for improving the uniformness of patterns generated by electron beam lithography Peter Vettiger 1985-02-19 $21,844,000