Robert E. Sparks
13Patents
10h-index
20Co-inventors
72Inventor score
Filing activity: Feb 13, 1978 → Jun 3, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4675140A | Method for coating particles or liquid droplets | Human Necessities | 140 | Expired |
| US4181718A | Polyanion-stabilized aluminum hydrogels | Human Necessities | 43 | Expired |
| US5186937A | Composition for feeding ruminants | Human Necessities | 40 | Expired |
| US5019302A | Method for granulation | Performing Operations; Transporting | 27 | Expired |
| US6544552B2 | Method of producing porous tablets with improved dissolution properties | Human Necessities | 22 | Expired |
| US5902565A | Spray dried vaccine preparation comprising aluminium adsorbed immunogens | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5100592A | Method and apparatus for granulation and granulated product | Human Necessities | 20 | Expired |
| US4239714A | Method for modifying the pore size distribution of a microporous separation medium | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5289929A | Tamper indicating means for vacuum closures | Performing Operations; Transporting | 16 | Expired |
| US9232873B2 | Method for brewing a beverage | Human Necessities | 11 | Active |
| US5336433A | Bleaching agent | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6631808B2 | Air classifier system for the separation of particles | Performing Operations; Transporting | 7 | Expired |
| US6691765B2 | Products for the manufacture of molds and cores used in metal casting and a method for their manufacture and recycle from crushed rock | Performing Operations; Transporting | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.