DN

David J. Norberg

ST Stepan: 6 patents #42 of 221Top 20%
Overall (All Time): #804,183 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11686575 Hardness and flatness tester Thomas Johnson, Daniel Yocius 2023-06-27
11543810 Systems and methods for computer vision assisted foam board processing Daniel Yocius, Sean O'Cuanaigh 2023-01-03
11009342 Hardness and flatness tester Thomas Johnson, Daniel Yocius 2021-05-18
9447225 Polyester polyols containing diels-alder or ene adducts Rick Tabor, Chunhua Yao, Andrew Guo, Timothy L. Lambert 2016-09-20
9212250 Method of improving mechanical strength of flexible polyurethane foams made from bio-based polyols, the polyol compositions utilized therein and the foams produced thereby Warren A. Kaplan, Xiuguang A. Guo 2015-12-15
8916620 Process for polyurethane-modified polyisocyanurate foam with improved thermal stability Warren A. Kaplan, Angelo R. Gabbianelli 2014-12-23