John H. Purnell
6Patents
4h-index
6Co-inventors
42Inventor score
Filing activity: Sep 9, 1982 → May 17, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4605806A | Proton-catalyzed reactions catalyzed by hydrogen ion-exchanged layered clays | Chemistry; Metallurgy | 15 | Expired |
| US4499319A | Proton-catalysed reactions in which water is not a stoichiometric reactant catalysed by metal cation-exchanged layered clays | Chemistry; Metallurgy | 14 | Expired |
| US4590294A | Proton-catalyzed reactions catalyzed by hydrogen ion-exchanged layered clays | Chemistry; Metallurgy | 9 | Expired |
| US4749808A | Proton-catalysed reactions in which water is not a stoichiometric reactant catalysed by metal cation exchanged layered clays | Chemistry; Metallurgy | 5 | Expired |
| US4866020A | Lithiated clays and uses thereof | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5008465A | Proton-catalyzed reactions catalyzed by hydrogen ion-exchanged layered clays | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.