DK

Dennis K. Krass

PI Ppg Industries: 17 patents #32 of 1,216Top 3%
📍 Canal Fulton, OH: #7 of 110 inventorsTop 7%
🗺 Ohio: #4,140 of 73,341 inventorsTop 6%
Overall (All Time): #281,042 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
4657580 Herbicidally active substituted diphenyl ether oxime derivatives 1987-04-14
4634464 Defoliant method 1987-01-06
4584403 Herbicidally active substituted diphenyl ether oxime derivatives 1986-04-22
4564385 Herbicidally active substituted diphenyl ether oxime derivatives 1986-01-14
4528025 Herbicidally active quinoline or quinoxaline acetophenone oxime derivatives Sidney B. Richter 1985-07-09
4504671 Method for preparing aldoxime or ketoxime-O-alkanoic acid John C. Crano, Melvin S. Newman 1985-03-12
4501924 Herbicidally active substituted diphenyl ether acetals or ketals 1985-02-26
4468244 Herbicidally active benzoxazolyloxy benzoate derivatives Sidney B. Richter 1984-08-28
4464533 Herbicidally active quinoline or quinoxaline benzoate derivatives Sidney B. Richter 1984-08-07
4456466 Herbicidally active benzoxazolyl acetophenone oxime derivatives Sidney B. Richter 1984-06-26
4440930 Herbicidally active quinoline or quinoxaline acetophenone oxime derivatives Sidney B. Richter 1984-04-03
4401602 4-Trifluoromethylphenoxy-benzaldoximes 1983-08-30
4375981 Method for controlling weed growth using herbicidally 5-(2-chloro-4-trifluoromethyl)-, or (4-trifluoromethyl or 2,6-dichloro-4-trifluoromethylphenoxy)-2-nitro-substituted carbonyl oxime-O-alkyl ethers 1983-03-08
4344789 Acids and esters of 5-(2-optionally substituted-4-trifluoromethyl-6-optionally substituted phenoxy)-2-nitro, -halo, or-cyano alpha substituted phenyl carboxy oximes, and method of controlling weeds with them 1982-08-17
4263227 5-(2-Chloro-4-trifluoromethyl)-, or (4-trifluoromethyl or 2,6-dichloro-4-trifluoromethylphenoxy)-2-nitro-substituted carbonyl oxime-O-alkyl ethers 1981-04-21
4227916 Control of weeds with 1-(3-methyl-5-isothiazolyl)-3-alkoxyl-3-methylureas 1980-10-14
4196126 1-(3-Methyl-5-isothiazolyl)-3-methoxy-3-methylurea 1980-04-01