Harnden; Robert M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Harnden; Robert M..The latest application filed is for "environmentally degradable polyethylene composition".
- Harnden; Robert M. - Granville OH
- Harnden; Robert M. - Russellville AR
| Patent | Date |
|---|---|
| Environmentally degradable polyethylene composition Grant 5,096,941 - Harnden March 17, 1 | 1992-03-17 |
| Densifiable and re-expandable polyurethane foam Grant 5,032,622 - Herrington , et al. July 16, 1 | 1991-07-16 |
| Process for the manufacture of diethylenetriamine Grant 4,387,249 - Harnden , et al. June 7, 1 | 1983-06-07 |
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