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USPTO Patent Rankings Data through Dec 31, 2025
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Marcel Siegler — 8 Patents

SESeton: 7 patents #2 of 22Top 10%
North Bergen, NJ: #16 of 154 inventorsTop 15%
New Jersey: #11,099 of 69,400 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Marcel Siegler has been granted 8 US patents while listed as an inventor at Seton. The first was granted in 1981 and the most recent in August 1994. Marcel Siegler ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Marcel Siegler in North Bergen, NJ, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5340737 Process of preparing pepsin for bating hides Mihai Deselnicu, Victoria Bratulescu, Andrei ANGHEL 1994-08-23
4784664 Non-chrome tanning method Ernest Diamont, Joseph L. Suarez, Colin Quinn 1988-11-15
4740211 Chromium-free tanning process Ernest Diamont, Joseph L. Suarez, Colin Quinn 1988-04-26
4557855 Surface active agent compositions Gheorghe Cioca, Apostol Spiliadis 1985-12-10 $512,000
4494994 Surface active agent compositions containing polypeptides and lignin sulfonic acid Gheorghe Cioca, Apostol Spiliadis 1985-01-22 $717,000
4295894 Method of preparing soluble collagen fibers Gheorge Cioca 1981-10-20 $71,000
4285689 Leather tanning composition and method 1981-08-25 $30,000
4285986 Oligopeptides derived from collagen Gheorghe Cioca 1981-08-25 $30,000