Christopher John Urch
25Patents
10h-index
39Co-inventors
75Inventor score
Filing activity: Dec 12, 1988 → Jan 15, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5922732A | Bicyclic amines | Chemistry; Metallurgy | 42 | Expired |
| US6174894A | Bicyclic amine derivatives | Chemistry; Metallurgy | 34 | Expired |
| US5968947A | Bicyclic amine derivatives | Chemistry; Metallurgy | 34 | Expired |
| US6177442A | Bicyclic amine derivatives | Chemistry; Metallurgy | 34 | Expired |
| US6093726A | Bicyclic amine derivatives | Chemistry; Metallurgy | 26 | Expired |
| US6573275B1 | Bicyclic amines | Chemistry; Metallurgy | 24 | Expired |
| US6291474A | Bicyclic amine derivatives | Chemistry; Metallurgy | 23 | Expired |
| US6207676A | Bicyclic amines | Chemistry; Metallurgy | 22 | Expired |
| US6391883B1 | Bicyclic amines | Chemistry; Metallurgy | 20 | Expired |
| US6544989B2 | Benzazoles: benzoxazole, benzthiazole and benzimidazole derivatives | Human Necessities | 14 | Expired |
| US5912254A | Bicycle amine derivatives | Human Necessities | 5 | Expired |
| US4973767A | Cyclopropane derivatives | Chemistry; Metallurgy | 3 | Expired |
| US5912388A | Preparation of aldehydes or ketones from alcohols | Chemistry; Metallurgy | 1 | Expired |
| US6294545A | Bicyclic amines and their use as insecticides | Human Necessities | 0 | Expired |
| US11641858B2 | Agricultural chemicals | Chemistry; Metallurgy | 0 | Active |
| US9951028B2 | Agricultural chemicals | Chemistry; Metallurgy | 0 | Active |
| US5849754A | Bicyclic amine derivatives | Human Necessities | 0 | Expired |
| US6703347B2 | Isothiazole derivatives and their use as pesticides | Human Necessities | 0 | Expired |
| US11224224B2 | Thiobenzoimidazole as fungicides | Chemistry; Metallurgy | 0 | Active |
| US6066646A | Bicyclic amine derivatives | Human Necessities | 0 | Expired |
| US11261177B2 | Benzoxazinone derivatives useful as herbicides | Chemistry; Metallurgy | 0 | Active |
| US11241013B2 | Benzimidazole compounds as agricultural chemicals | Chemistry; Metallurgy | 0 | Active |
| US11440900B2 | Agricultural chemicals | Chemistry; Metallurgy | 0 | Active |
| US11634390B2 | Agricultural chemicals | Chemistry; Metallurgy | 0 | Active |
| US5770741A | Process for cylopropane derivatives | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.