Inventor · disambiguated record
Stefan Hendrikus Schaafsma
Also filed as: SCHAAFSMA STEFAN H · SCHAAFSMA STEFAN HENDRIKUS
6 granted patents·1 pending application·24 citations·filing 2002–2016
75Inventor score
Files withSCHAAFSMA STEFAN HENDRIKUS2STAMICARBON2CIBA SC HOLDING AG1JANSSEN RICHARD JOHANNES MATHEUS1
Top patents by PatentIndex Score
7 records- 0178US8236086B2Coated fertilizerJANSSEN RICHARD JOHANNES MATHEUS·Filed 2007·Granted Aug 7, 2012·18 cites·4 claims
- 0273US7547738B2Free flowing melamine cyanurate agglomerateCIBA SC HOLDING AG·Filed 2006·Granted Jun 16, 2009·4 cites·4 claims
- 0359US8506671B2Coated fertilizerSCHAAFSMA STEFAN HENDRIKUS·Filed 2008·Granted Aug 13, 2013·1 cites·14 claims
- 0458US8845775B2Fertilizer coatingSCHAAFSMA STEFAN HENDRIKUS·Filed 2010·Granted Sep 30, 2014·1 cites·15 claims
- 0541US10227265B2Granulation of urea productsSTAMICARBON·Filed 2016·Granted Mar 12, 2019·0 cites·13 claims
- 0640US9120709B2Method of making controlled release fertilizer particlesSTAMICARBON·Filed 2012·Granted Sep 1, 2015·0 cites·13 claims
- 0733US2005070642A1Free flowing melamine cyanurate agglomerateFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →