Roy D. Laundon
6Patents
4h-index
8Co-inventors
46Inventor score
Filing activity: Feb 22, 1984 → Jun 20, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5876688A | Zinc oxide and a process of making it | Chemistry; Metallurgy | 21 | Expired |
| US4940572A | Process for preparing an iron oxide | Chemistry; Metallurgy | 6 | Expired |
| US5039429A | Hypochlorite removal from waste stream effluents | Chemistry; Metallurgy | 5 | Expired |
| US4865833A | Process for preparing an iron oxide | Chemistry; Metallurgy | 4 | Expired |
| US4624845A | Process for preparing an iron oxide | Chemistry; Metallurgy | 3 | Expired |
| US6758893B2 | Granular pigments useful to color concrete | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.