Richard D. Howells
12Patents
9h-index
9Co-inventors
61Inventor score
Filing activity: Oct 13, 1982 → Dec 22, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5025052A | Fluorochemical oxazolidinones | Chemistry; Metallurgy | 161 | Expired |
| US5099026A | Fluorochemical oxazolidinones | Chemistry; Metallurgy | 81 | Expired |
| US4566981A | Fluorochemicals and fibrous substrates treated therewith: compositions of cationic and non-ionic fluorochemicals | Emerging Cross-Sectional Technologies | 71 | Expired |
| US5874616A | Preparation of bis (fluoroalkylenesulfonyl) imides and (fluoroalkysulfony) (fluorosulfonyl) imides | Electricity | 62 | Expired |
| US4668726A | Cationic and non-ionic fluorochemicals and fibrous substrates treated therewith | Textiles; Paper | 55 | Expired |
| US4540497A | Fluoroaliphatic radical-containing, substituted guanidines and fibrous substrates treated therewith | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4525423A | Fluorochemical copolymers and ovenable paperboard and textile fibers treated therewith | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4582882A | Fluorochemical copolymers and ovenable paperboard and textile fibers treated therewith | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4533713A | Fluoroaliphaticsulfonamides containing oxirane groups and/or N-.beta.-hydroxyalkylene groups | Chemistry; Metallurgy | 14 | Expired |
| US4474982A | 1-Halomethyl-2-alkoxyethyl acrylates and methacrylates | Chemistry; Metallurgy | 7 | Expired |
| US4625069A | Fluorochemical rhodium compounds | Chemistry; Metallurgy | 2 | Expired |
| US4556720A | Fluorochemical rhodium compounds | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.