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Thomas L. Siwecki — 5 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
Walnut Creek, CA: #345 of 1,300 inventorsTop 30%
California: #107,996 of 386,348 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Thomas L. Siwecki has been granted 5 US patents while listed as an inventor at Unknown. The first was granted in 1981 and the most recent in November 1990. Thomas L. Siwecki ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Thomas L. Siwecki in Walnut Creek, CA, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4974213 Passive active underwater sound detection apparatus 1990-11-27
4410968 Method and apparatus for recording on a disk supported deformable metallic film Hugh F. Frohbach, Robert E. Myers, Norman A. Peppers, Louis F. Schaefer 1983-10-18
4333832 Rotating solution separation system Gerry B. Andeen 1982-06-08
4310847 Color television film scanning system using uniform motion and line arrays Hugh F. Frohbach, Albert Macovski, Norman A. Peppers, Louis F. Schaefer 1982-01-12
4261007 Color television encoding and decoding system Hugh F. Frohbach, Robert E. Myers, Norman A. Peppers, Louis F. Schaefer, Albert Macovski 1981-04-07