Werner Guthlein
19Patents
10h-index
20Co-inventors
72Inventor score
Filing activity: Sep 24, 1973 → Jan 29, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4385114A | Oxidation indicators comprising 3,3',5,5'-tetraalkylbenzidine compounds | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4665023A | Imidazole derivatives as redox indicators | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4013416A | Diagnostic means for the detection of protein in body fluids | Physics | 29 | Expired |
| US4278763A | Diagnostic agents for the detection of proteolytic enzymes | Chemistry; Metallurgy | 25 | Expired |
| US4219336A | Diagnostic agent and method for the detection of occult blood in feces | Emerging Cross-Sectional Technologies | 19 | Expired |
| US3975398A | 9-Substituted 3-aminocarbazole compounds | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4966855A | New redox indicators | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5292669A | Agents for the detection of substrates with hydrolase activity | Physics | 16 | Expired |
| US3988208A | 9-Substituted 3-aminocarbazole compounds and test strip indicator compositions | Chemistry; Metallurgy | 14 | Expired |
| US4296202A | Diagnostic composition for the detection of leukocytes and chromogens useful therein | Physics | 12 | Expired |
| US4331760A | Diagnostic agent for the detection of leukocytes and chromogens useful therein | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5202233A | Process for the detection of substances with hydrolase activity | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4260777A | Diagnostic agent for the detection of protein in body fluids | Physics | 5 | Expired |
| US4070495A | Microscope slide | Physics | 5 | Expired |
| US4442033A | Azo dyestuff for use as a chromogen in detecting leukocytes | Physics | 5 | Expired |
| US4297271A | Guaiaconic acid A from guaiac resin | Emerging Cross-Sectional Technologies | 4 | Expired |
| US3947377A | Stabilized indicator compositions containing 9-.gamma.-aminopropyl)-3-aminocarbazole | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4245096A | Bis-(2,4-dinitrophenyl)-methyl-pyridinium and quinolinium compounds | Chemistry; Metallurgy | 2 | Expired |
| US5260428A | Agent for the detection of substances with hydrolase activity | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.