John E. Franz
52Patents
12h-index
13Co-inventors
77Inventor score
Filing activity: May 31, 1972 → Mar 16, 1988
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4405531A | Salts of N-phosphonomethylglycine | Chemistry; Metallurgy | 110 | Expired |
| US3950402A | Process for producing N-phosphonomethyl glycine | Chemistry; Metallurgy | 73 | Expired |
| US3977860A | Herbicidal compositions and methods employing esters of N-phosphonomethylglycine | Chemistry; Metallurgy | 66 | Expired |
| US4147719A | Process for producing N-phosphonomethylglycine salts | Chemistry; Metallurgy | 51 | Expired |
| US3954848A | Process for producing N-phosphonomethyl glycine | Chemistry; Metallurgy | 41 | Expired |
| US4840659A | N-Phosphonomethylglycine phytotoxicant compositions | Chemistry; Metallurgy | 24 | Expired |
| US4735649A | Gametocides | Chemistry; Metallurgy | 23 | Expired |
| US4003912A | Dicarboximido-N-phenylsubstituted carbamates and derivatives | Chemistry; Metallurgy | 23 | Expired |
| US4062669A | N-Organo-N-phosphonomethylglycine-N-oxides and plant growth regulant and phytotoxicant compositions containing same | Chemistry; Metallurgy | 21 | Expired |
| US3988142A | Increasing carbohydrate deposition in plants with N-phosphono-methylglycine and derivatives thereof | Chemistry; Metallurgy | 19 | Expired |
| US4144047A | 3-Aryl-4-isoxazolecarboxylic acids as plant growth regulants | Chemistry; Metallurgy | 14 | Expired |
| US3985773A | Plant growth regulators | Chemistry; Metallurgy | 13 | Expired |
| US4115095A | 5-Aryl-1,2,4-thiadiazole-3-carboxylates and agricultural methods | Human Necessities | 11 | Expired |
| US4187099A | 3-Aryl-4-isothiazolecarboxylic acid and 3-aryl-4-isoxazolecarboxylic acid derivatives and their use as herbicides | Chemistry; Metallurgy | 11 | Expired |
| US3996040A | Increasing sucrose content of sugar cane employing N-phenylsulfonamido-N-phosphonomethyl glycine and certain derivatives thereof | Chemistry; Metallurgy | 11 | Expired |
| US4180394A | Derivatives of N-trifluoroacetyl-N-phosphonomethylglycinates and the herbicidal use thereof | Chemistry; Metallurgy | 7 | Expired |
| US3948975A | Hydroxyalkyl esters of N-phosphonomethyl glycine | Chemistry; Metallurgy | 6 | Expired |
| US4131448A | N-Organo-N-phosphonomethylglycine-N-oxides and phytotoxicant compositions containing same | Chemistry; Metallurgy | 6 | Expired |
| US4025332A | Increasing sucrose content of sugarcane plants with N-phosphonomethylglycinamides | Chemistry; Metallurgy | 6 | Expired |
| US4243406A | 5-Aryl-4-isoxazolecarboxylate-safening agents | Human Necessities | 5 | Expired |
| US4199345A | Derivatives of N-trifluoroacetyl-N-phosphonomethylglycine dichloride | Chemistry; Metallurgy | 5 | Expired |
| US4116673A | 1-Alkyl-3-aryl-4-pyrazolecarboxylates | Human Necessities | 5 | Expired |
| US4130412A | N-Organo-N-phosphonomethylglycine-N-oxides and phytotoxicant compositions containing same | Chemistry; Metallurgy | 4 | Expired |
| US4245106A | Process for the preparation of 1-alkyl-3-aryl-4-pyrazolecarboxylates | Chemistry; Metallurgy | 4 | Expired |
| US4471131A | Novel silyl esters of N-phosphonomethylglycine | Chemistry; Metallurgy | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.