CH

Christian S. Harstick

EA Ethyl Petroleum Additives: 2 patents #26 of 68Top 40%
ET Ethyl: 1 patents #298 of 494Top 65%
📍 Kirkwood, MO: #91 of 290 inventorsTop 35%
🗺 Missouri: #6,609 of 23,789 inventorsTop 30%
Overall (All Time): #1,647,916 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5534174 Graft copolymer comprising a star-shaped polymer and an n-allyl amide Kenneth O. Henderson 1996-07-09
5166439 Composition containing a mannich base of a partially sulfurized hindered phenol mixture William Y. Lam 1992-11-24
4278555 Lubricant composition Edward F. Zaweski 1981-07-14