SS

Stefan Hendrikus Schaafsma

SB Stamicarbon B.V.: 4 patents #48 of 427Top 15%
CC Ciba Specialty Chemicals: 1 patents #701 of 1,233Top 60%
DB Dsm Ip Assets B.V.: 1 patents #1,007 of 2,011Top 55%
Overall (All Time): #834,492 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
10227265 Granulation of urea products Petrus Catharina Gerlach Soons 2019-03-12
9120709 Method of making controlled release fertilizer particles 2015-09-01
8845775 Fertilizer coating 2014-09-30
8506671 Coated fertilizer Richard Johannes Matheus Janssen 2013-08-13
8236086 Coated fertilizer Richard Johannes Matheus Janssen, Theodorus Marie Leopold Evers 2012-08-07
7547738 Free flowing melamine cyanurate agglomerate Renier Henricus Maria Kierkels, Philippe Wolfgang Paul Valere Bleiman, Johannes Cornelis Jozef Mokveld 2009-06-16