Inventor · disambiguated record
Roger D. Spence
Also filed as: SPENCE ROGER D
3 granted patents·37 citations·filing 1988–1992
71Inventor score
Top patents by PatentIndex Score
3 records- 0159US4828761AProcess for impregnating a concrete or cement body with a polymeric materialUS ENERGY·Filed 1988·Granted May 9, 1989·17 cites·20 claims
- 0238US5239936ALow-temperature ashing of hazardous plastic wasteUS AIR FORCE·Filed 1992·Granted Aug 31, 1993·11 cites·9 claims
- 0335US5167711ALow-temperature ashing of hazardous plastic wasteUS AIR FORCE·Filed 1992·Granted Dec 1, 1992·9 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →