Stephen Mark Andrews
32Patents
6h-index
51Co-inventors
72Inventor score
Filing activity: Dec 15, 1997 → Feb 20, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6191209A | Polyester compositions of low residual aldehyde content | Chemistry; Metallurgy | 74 | Expired |
| US6908650B2 | Polyester and polyamide compositions of low residual aldehyde content | Emerging Cross-Sectional Technologies | 60 | Expired |
| US7157586B2 | Bloom-resistant benzotriazole UV absorbers and compositions stabilized therewith | Chemistry; Metallurgy | 54 | Expired |
| US6472456B1 | Flame retardant compositions | Chemistry; Metallurgy | 22 | Expired |
| US6599963B2 | Flame retardant compositions | Chemistry; Metallurgy | 18 | Expired |
| US6790499B2 | Polyester compositions of low residual aldehyde content | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7214742B2 | 2-hydroxyphenyl-s-triazine crosslinkers for polymer networks | Chemistry; Metallurgy | 6 | Expired |
| US6800678B2 | Flame retardant compositions | Chemistry; Metallurgy | 6 | Expired |
| US7205379B2 | Process for preparing a stabilized polyester | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7288583B2 | Method of content protection with durable UV absorbers | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6596461B1 | Piperazinone derivatives | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6380285B1 | Bloom-resistant benzotriazole UV absorbers and compositions stabilized therewith | Chemistry; Metallurgy | 3 | Expired |
| US7022390B2 | Polyester and polyamide compositions of low residual aldehyde content | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7109259B2 | Piperazinone derivatives | Physics | 2 | Expired |
| US5990208A | Stabilization of polycarbonate/ABS blends with mixtures of hindered amines and UV absorbers | Chemistry; Metallurgy | 2 | Expired |
| US6508847B2 | Bloom-resistant benzotriazole UV absorbers and compositions stabilized therewith | Chemistry; Metallurgy | 2 | Expired |
| US6762226B2 | Compositions stabilized by dioxopiperazinyl derivatives | Chemistry; Metallurgy | 1 | Expired |
| US7678878B2 | Process for producing polyester with metal phosphonic acid complex catalysts | Chemistry; Metallurgy | 1 | Active |
| US6746739B2 | Method of content protection with durable UV absorbers | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8030435B2 | Solid state polymerization process for polyester with phosphinic acid compounds | Chemistry; Metallurgy | 1 | Active |
| US6441166B1 | Sterically hindered amine compounds | Chemistry; Metallurgy | 1 | Expired |
| US6797751B2 | Method of content protection with durable UV absorbers | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6642383B2 | Oxopiperazinyl derivatives and light stabilized compositions | Chemistry; Metallurgy | 1 | Expired |
| US7138457B2 | Polyester compositions of low residual aldehyde content | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6916881B2 | Polyester compositions of low residual aldehyde content | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.