Derek Smith
7Patents
3h-index
7Co-inventors
50Inventor score
Filing activity: Mar 16, 1979 → Sep 9, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6135594A | Toric contact lens with axis offset compensation and method and apparatus for manufacturing same | Performing Operations; Transporting | 13 | Expired |
| US4304711A | Pigment compositions | Chemistry; Metallurgy | 4 | Expired |
| US6503449B1 | Process for the control of microbial contamination in water-based solids suspensions | Chemistry; Metallurgy | 3 | Expired |
| US6361595B1 | Process for the preparation of pigment compositions | Chemistry; Metallurgy | 1 | Expired |
| US12097718B2 | Printed substrate and method for printing onto a substrate | Chemistry; Metallurgy | 0 | Active |
| US11110731B2 | Method for applying ink and method for producing wallpaper | Chemistry; Metallurgy | 0 | Active |
| US12005725B2 | Method of forming a surface covering with substrate, phase transition liquid and plasticizer | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.