Inventor · disambiguated record
Stephen I. Callis
Also filed as: CALLIS STEPHEN · CALLIS STEPHEN I
3 granted patents·36 citations·filing 2000–2020
64Inventor score
Files withAMERICAN SUPERCONDUCTOR CORP2
Top patents by PatentIndex Score
3 records- 0176USD440163SCombined wristwatch and stress/heart monitor with warning deviceFiled 2000·Granted Apr 10, 2001·34 cites·1 claims
- 0264US10669001B2Hybrid electrical and mechanical propulsion and energy system for a shipAMERICAN SUPERCONDUCTOR CORP·Filed 2018·Granted Jun 2, 2020·2 cites·23 claims
- 0349US11794872B2Electrical power system for a watercraftAMERICAN SUPERCONDUCTOR CORP·Filed 2020·Granted Oct 24, 2023·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →