Inventor · disambiguated record
Martin E. Henderson
Also filed as: HENDERSON MARTIN · HENDERSON MARTIN E
4 granted patents·79 citations·filing 1981–2009
78Inventor score
Top patents by PatentIndex Score
4 records- 0164US4412211ASystem for test sequence annunciationAMERICAN DISTRICT TELEGRAPH CO·Filed 1981·Granted Oct 25, 1983·27 cites·13 claims
- 0263US8515022B2Speakerphone and extension speakerphone for use in personal emergency response systemWOODING ANSON WILLIAM·Filed 2009·Granted Aug 20, 2013·5 cites·16 claims
- 0357US6504908B1Reminder phoneLIFELINE SYSTEMS INC·Filed 1999·Granted Jan 7, 2003·33 cites·19 claims
- 0450US4468664ANon-home run zoning systemAMERICAN DISTRICT TELEGRAPH CO·Filed 1982·Granted Aug 28, 1984·14 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →