Inventor · disambiguated record
David Grupp
Also filed as: GRUPP DAVID · GRUPP DAVID J
5 granted patents·47 citations·filing 2000–2015
77Inventor score
Top patents by PatentIndex Score
5 records- 0188US8439534B1Mobile lighting apparatusROE GEORGE MICHAEL·Filed 2010·Granted May 14, 2013·36 cites·20 claims
- 0271US9466847B2Integrated recirculating fuel cell methodsALTERGY SYSTEMS·Filed 2015·Granted Oct 11, 2016·1 cites·8 claims
- 0370US9029034B2Integrated recirculating fuel cell systemGARRETTSON GLEN A·Filed 2011·Granted May 12, 2015·2 cites·6 claims
- 0458US6640742B1Device for producing signal tones by means of chimes suspended from a shared oscillating carrier plateFiled 2000·Granted Nov 4, 2003·8 cites·16 claims
- 0556US10115984B2Integrated recirculating open cathode fuel cell systemALTERGY SYSTEMS·Filed 2015·Granted Oct 30, 2018·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →