DH

Douglas Hillshafer

ST Stepan: 2 patents #13 of 37Top 40%
Overall (2016): #146,821 of 481,213Top 35%
2
Patents 2016

Issued Patents 2016

Patent #TitleCo-InventorsDate
9487467 Method for producing ο-phthalate polyester polyols with low cyclic ester content Andrew Guo 2016-11-08
9284518 Multi-arm hydrophilic urethane polymers, methods of making them, and compositions and processes employing them Ronald A. Masters, Christopher A. Gariepy 2016-03-15