Inventor · disambiguated record
Jan Stoffelsma
Also filed as: STOFFELSMA JAN · STOFFELSMA JAN U · STOFFELSMA JAN UILKE
10 granted patents·1 pending application·67 citations·filing 1973–2002
88Inventor score
Top patents by PatentIndex Score
11 records- 0185US3970689AMercapto alcohols and mercaptoalkyl estersPOLAK FRUTAL WORKS·Filed 1973·Granted Jul 20, 1976·21 cites·9 claims
- 0274US4380655ANovel sulfur-containing flavoring agentsBEHEER BV PFW·Filed 1978·Granted Apr 19, 1983·6 cites·1 claims
- 0373US4119737ASulfur-containing flavoring agentsBEHEER BV PFW·Filed 1977·Granted Oct 10, 1978·6 cites·17 claims
- 0470US4495128AMethod for coloring polyvinylchlorideWAVIN BV·Filed 1980·Granted Jan 22, 1985·9 cites·1 claims
- 0556US6684910B2Multi-layered pipeWAVIN BV·Filed 2001·Granted Feb 3, 2004·11 cites·10 claims
- 0655US4332829AMethylthiomethyl esters as flavor additivesPOLAK FRUTAL WORKS·Filed 1981·Granted Jun 1, 1982·5 cites·33 claims
- 0748US4053656AMercapto alcohols and mercaptoalkyl estersPOLAK FRUTAL WORKS·Filed 1976·Granted Oct 11, 1977·3 cites·3 claims
- 0837US4477678ASulfur-containing flavoring agentsBEHEER BV PFW·Filed 1983·Granted Oct 16, 1984·5 cites·8 claims
- 0935US2002096797A1Method for forming an article comprising closed-cell microfoam from thermoplasticWAVIN BV·Filed 2002·Application pending·0 cites
- 1029US4414233AMethylthiomethyl esters as flavor additivesPOLAK FRUTAL WORKS·Filed 1982·Granted Nov 8, 1983·0 cites·33 claims
- 1129US4339278AColoring composition for coloring thermoplastic polymersWAVIN BV·Filed 1980·Granted Jul 13, 1982·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →