Inventor · disambiguated record
Calvin L. Espy
Also filed as: ESPY CALVIN · ESPY CALVIN L
3 granted patents·146 citations·filing 1979–1996
76Inventor score
Top patents by PatentIndex Score
3 records- 0183US5969317APrice determination system and method using digitized gray-scale image recognition and price-lookup filesNCR CORP·Filed 1996·Granted Oct 19, 1999·90 cites·13 claims
- 0269US4227343AHorticulture device for rotating plants due to transpiration and evaporation of moistureESPY CALVIN·Filed 1979·Granted Oct 14, 1980·36 cites·5 claims
- 0359US4216619AHorticulture device for rotating plants due to transpiration and evaporation of moistureESPY CALVIN L·Filed 1979·Granted Aug 12, 1980·20 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →