Keiichi Uchida
12Patents
5h-index
23Co-inventors
66Inventor score
Filing activity: Feb 22, 1973 → Jul 1, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3936505A | Process for preparing unsaturated aldehyde having three to four carbon atoms | Performing Operations; Transporting | 26 | Expired |
| US4025565A | Process for preparing unsaturated aldehyde having three to four carbon atoms | Chemistry; Metallurgy | 16 | Expired |
| US3965163A | Process for preparing unsaturated carboxylic acids from the corresponding unsaturated aldehydes | Chemistry; Metallurgy | 15 | Expired |
| US5532302A | Flame retardant composition and method for use in synthetic thermoplastic resins | Chemistry; Metallurgy | 10 | Expired |
| US3998877A | Process for preparing methacrylic acid | Performing Operations; Transporting | 8 | Expired |
| US4390511A | Process for producing SF.sub.6 through SF.sub.5 Cl | Chemistry; Metallurgy | 5 | Expired |
| US4372938A | Producing sulfur tetrafluoride using amine/hydrogen fluoride complex | Chemistry; Metallurgy | 4 | Expired |
| US4134796A | Method of purifying hexafluoropropylene oxide | Chemistry; Metallurgy | 3 | Expired |
| US4440948A | Process for preparing methacrylic acid | Performing Operations; Transporting | 2 | Expired |
| US7669756B2 | Method for surveying fishery sources and device for effecting such method | Emerging Cross-Sectional Technologies | 1 | Active |
| US4186266A | Process for producing 5-fluorouracil | Chemistry; Metallurgy | 1 | Expired |
| US9989852B2 | Positive photosensitive resin composition, cured film formed by curing same, and optical device equipped with same | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.