William Alexander
34Patents
20h-index
8Co-inventors
78Inventor score
Filing activity: Nov 9, 1966 → Sep 1, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4836940A | Composition and method of controlling lost circulation from wellbores | Emerging Cross-Sectional Technologies | 176 | Expired |
| US4824901A | Surface treated absorbent polymers | Chemistry; Metallurgy | 100 | Expired |
| US4985518A | Process for preparing water-absorbing resins | Chemistry; Metallurgy | 100 | Expired |
| US4613542A | Method of impregnating a water-penetrable article with a swell-inhibited water swellable clay slurry | Emerging Cross-Sectional Technologies | 54 | Expired |
| US3936087A | Collection receptacle | Performing Operations; Transporting | 53 | Expired |
| US4755562A | Surface treated absorbent polymers | Chemistry; Metallurgy | 47 | Expired |
| US4624982A | Method of temporarily inhibiting the swellability of water swellable clays and compositions | Chemistry; Metallurgy | 46 | Expired |
| US5034045A | Liquid crop stimulant | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4514510A | Hydrogen enriched water swellable clay having reduced acid demand and stable at low pH | Chemistry; Metallurgy | 41 | Expired |
| US5026416A | Liquid crop stimulant | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4677174A | Water absorbent styrene-acrylic acid copolymers | Performing Operations; Transporting | 33 | Expired |
| US4886550A | Flexible grout composition and method | Chemistry; Metallurgy | 33 | Expired |
| US6293203A | Firearms and ammunition | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US4462470A | Extrusion of bentonite clay for fluid loss reduction in drilling fluids | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5112665A | Water barrier of water-swellable clay sandwiched between interconnected layers of flexible fabric | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4820773A | Water absorbent resins prepared by polymerization in the presence of styrene-maleic anhydride copolymers | Chemistry; Metallurgy | 26 | Expired |
| US4709767A | Production process for manufacturing low molecular weight water soluble acrylic polymers as drilling fluid additives | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4016142A | Process for the control of carboxyl end groups in fiber-forming polyesters | Chemistry; Metallurgy | 21 | Expired |
| US5053265A | Moisture-imprevious panel capable of delayed hydration | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5132021A | In situ treatment of waste water to prevent ground water contamination | Fixed Constructions | 20 | Expired |
| US4378299A | Cable lubricating composition and method | Chemistry; Metallurgy | 19 | Expired |
| US4634538A | Water swellable clay composition and method to maintain stability in salt contaminated water | Chemistry; Metallurgy | 16 | Expired |
| US4794140A | Production process for manufacturing low molecular weight water soluble acrylic polymers as drilling fluid additives | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4935034A | Masonry cement composition and masonry construction | Chemistry; Metallurgy | 8 | Expired |
| US4820742A | Method for continuous manufacture of solid water absorbing resin | Human Necessities | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.