William H. Simpson
40Patents
7h-index
58Co-inventors
68Inventor score
Filing activity: Mar 24, 1988 → Nov 15, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5792725A | Thermal dye transfer magnetic ID card | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5399459A | Thermally bleachable dyes for laser ablative imaging | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5627128A | Thermal dye transfer system with low TG polymeric receiver mixture | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5891824A | Transparent protective sheet for thermal dye transfer print | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5553951A | Heated platen and rollers to elevate temperature of receiver in a thermal printer | Performing Operations; Transporting | 11 | Expired |
| US4977059A | Sulfonated-ethylene oxide dispersants for use in preparing amine-formaldehyde microcapsules | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4840866A | Microcapsule imaging system having improved dynamic range | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6177947A | Color image formation in receivers having field-driven particles | Performing Operations; Transporting | 7 | Expired |
| US5466658A | Thermal dye transfer receiving element for mordanting ionic dyes | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5538935A | Receiving element containing elastomeric beads for thermal dye transfer | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4910115A | Light-sensitive polymerizable compositions containing silver compounds | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5668081A | Thermal dye transfer dye-donor element with transferable protection overcoat | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5488025A | Dye-receiving element containing elastomeric beads in overcoat layer for thermal dye transfer | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5674805A | Binder for thermal transfer pigment donor element | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5670449A | Dye-donor element containing elastomeric beads for thermal dye transfer | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6426737B1 | Forming images by field-driven responsive light-absorbing particles | Physics | 5 | Expired |
| US6346502B1 | Dye-donor element with transferable protection overcoat | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7018772B2 | Method of transferring a protective overcoat to a dye-donor element | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5457082A | Thermal printing method | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6855666B2 | Transferable UV protective image overcoat | Performing Operations; Transporting | 3 | Expired |
| US6790477B2 | Label and method of making | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6362132B1 | Dye-donor element containing transferable protection overcoat | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6326944A | Color image device with integral heaters | Physics | 2 | Expired |
| US6063730A | Reusable donor layer containing dye wells for continuous tone thermal printing | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5962369A | Thermal dye transfer dye-donor element with transferable protection overcoat | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.