Inventor · disambiguated record
Charles Engelstein
Also filed as: ENGELSTEIN CHARLES
5 granted patents·77 citations·filing 1983–2019
79Inventor score
Top patents by PatentIndex Score
5 records- 0185US4487820ABattery holder for coin cellsMEMORY PROTECTION DEVICES INC·Filed 1983·Granted Dec 11, 1984·56 cites·5 claims
- 0281US11018394B2Top loading battery holderMEMORY PROT DEVICES INC·Filed 2019·Granted May 25, 2021·2 cites·6 claims
- 0372US10333116B2Top loading battery holderMEMORY PROT DEVICES INC·Filed 2017·Granted Jun 25, 2019·1 cites·16 claims
- 0472US9192059B2Battery holder for printed circuit boardBLAHA THOMAS·Filed 2011·Granted Nov 17, 2015·4 cites·23 claims
- 0552US4495257AHorizontal battery holder for cylinder cellsMEMORY PROTECTION DEVICES INC·Filed 1983·Granted Jan 22, 1985·14 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →