John Tomko
13Patents
4h-index
17Co-inventors
53Inventor score
Filing activity: Oct 18, 1984 → Feb 8, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4950757A | Process for manufacture of melamine pyrophosphate | Chemistry; Metallurgy | 7 | Expired |
| US4952646A | Epoxy resin compositions containing a polyphosphoric/polyphosphonic anhydride curing agent | Chemistry; Metallurgy | 6 | Expired |
| US5391816A | Formation of 1-phenylvinyl-1-phosphonic acid | Chemistry; Metallurgy | 5 | Expired |
| US4595400A | Herbicidal esters of 2-bromo-4-methylimidazole-5-carboxylic acid | Chemistry; Metallurgy | 4 | Expired |
| US4910240A | Thermally stable diphosphonate-type flame retardant additive for plastics | Chemistry; Metallurgy | 3 | Expired |
| US4736052A | Purification of diaryl alkylphosphonate reaction mixture | Chemistry; Metallurgy | 3 | Expired |
| US4822916A | Preparation of diaryl sulfones | Chemistry; Metallurgy | 3 | Expired |
| US4596598A | Herbicidal esters of 2-bromo-4-methylimidazole-5-carboxylic acid | Chemistry; Metallurgy | 2 | Expired |
| US5186733A | Arylphosphonodiamide compounds and herbicidal compositions thereof | Chemistry; Metallurgy | 2 | Expired |
| US7759522B2 | Process for purification of phosphate esters | Chemistry; Metallurgy | 1 | Expired |
| US5783730A | Formation of styrene phosphonic acid | Chemistry; Metallurgy | 0 | Expired |
| US6429329B1 | Synthesis of a hydrocarbylvinylphosphonic acid hydrocarbyl ester | Chemistry; Metallurgy | 0 | Expired |
| US6630539B1 | Neopentylene 1-phenylvinyl phosphonate | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.