Edwin T. Sortwell
19Patents
8h-index
3Co-inventors
65Inventor score
Filing activity: Jan 29, 1975 → Aug 21, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5897012A | Collapsible intermediate bulk container | Performing Operations; Transporting | 73 | Expired |
| US4499214A | Method of rapidly dissolving polymers in water | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4529794A | Method of rapidly dissolving polymers in water | Chemistry; Metallurgy | 27 | Expired |
| US4845192A | Method of rapidly dissolving polymer gels in water | Chemistry; Metallurgy | 23 | Expired |
| US4640622A | Dispersion of dry polymers into water | Performing Operations; Transporting | 21 | Expired |
| US4874588A | Method and apparatus for rapidly dissolving polymers in water | Chemistry; Metallurgy | 19 | Expired |
| US7189337B2 | Methods for preventing and/or extinguishing fires | Human Necessities | 17 | Expired |
| US4603156A | Method of dispersing dry, water-soluble polymers in water | Chemistry; Metallurgy | 13 | Expired |
| US5882605A | Reactor for the productions of flowable viscous products | Performing Operations; Transporting | 6 | Expired |
| US5935425A | Centrifuge with rotatable scroll and means to mix flocculant with feed slurry | Performing Operations; Transporting | 6 | Expired |
| US5222511A | Apparatus for debagging dust-containing or hazardous materials | Performing Operations; Transporting | 4 | Expired |
| US3949937A | System for handling and applying a non-suspended refractory slurry | Performing Operations; Transporting | 4 | Expired |
| US5185409A | Process for preparing water soluble polymer gels | Chemistry; Metallurgy | 3 | Expired |
| US9487610B2 | Low molecular weight multivalent cation-containing acrylate polymers | Chemistry; Metallurgy | 0 | Active |
| US9540469B2 | Multivalent polymers for clay aggregation | Chemistry; Metallurgy | 0 | Active |
| US8721896B2 | Method for dispersing and aggregating components of mineral slurries and low molecular weight multivalent polymers for mineral aggregation | Chemistry; Metallurgy | 0 | Active |
| US9090726B2 | Low molecular weight multivalent cation-containing acrylate polymers | Chemistry; Metallurgy | 0 | Active |
| US4507470A | Method of rapidly dissolving polymers in water | General | 0 | Revoked |
| US9150442B2 | Method for dispersing and aggregating components of mineral slurries and high-molecular weight multivalent polymers for clay aggregation | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.