Stephen D. Harper
9Patents
7h-index
3Co-inventors
48Inventor score
Filing activity: Mar 20, 1987 → Feb 9, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4721818A | Purification of polyols prepared using double metal cyanide complex catalysts | Chemistry; Metallurgy | 64 | Expired |
| US4877906A | Purification of polyols prepared using double metal cyanide complex catalysts | Chemistry; Metallurgy | 58 | Expired |
| US4843054A | Preparation of filterable double metal cyanide complex catalyst for propylene oxide polymerization | Chemistry; Metallurgy | 39 | Expired |
| US5304665A | Process for the preparation of highly esterified alkoxylated polyol compositions | Chemistry; Metallurgy | 24 | Expired |
| US5032671A | Preparation of lactone polymers using double metal cyanide catalysts | Chemistry; Metallurgy | 22 | Expired |
| US5736174A | Alkoxylated alcohol fat substitutes | Human Necessities | 10 | Expired |
| US5376398A | Reduced calorie food compositions containing fatty acid-esterified polytetramethylene ether glycol fat substitutes | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5003111A | Isobutylene oxide polyols | Chemistry; Metallurgy | 6 | Expired |
| US5055496A | Polymer product containing isobutylene oxide polyols | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.