WP

William R. Poyner

JH John I. Haas: 1 patents #1 of 5Top 20%
RL Robinson Brothers Limited: 1 patents #1 of 3Top 35%
📍 Stourbridge, GB: #1 of 5 inventorsTop 20%
Overall (1997): #19,911 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5686536 Sulfur-containing amine compositions and agents for vulcanizing rubber Khirud B. Chakraborty, Ranvir Singh Virdi 1997-11-11
5600012 Process for producing tetrahydroisoalpha acids Geoffrey W. Smith, Keith T. Westwood, David Hysert 1997-02-04