Inventor · disambiguated record
Donald B. Heckman
Also filed as: HECKMAN DONALD B
5 granted patents·191 citations·filing 1977–1997
83Inventor score
Top patents by PatentIndex Score
5 records- 0192US5811688AOpen channel flowmeter utilizing surface velocity and lookdown level devicesMARSH MCBIRNEY INC·Filed 1997·Granted Sep 22, 1998·107 cites·47 claims
- 0270US5421211ALiquid flowmeter including doppler signal processing, and methodMARSH MCBIRNEY INC·Filed 1994·Granted Jun 6, 1995·31 cites·8 claims
- 0363US5544531AFlowmeter having active temperature compensationMARSH MCBIRNEY INC·Filed 1995·Granted Aug 13, 1996·30 cites·13 claims
- 0447US5644088APort forward sensor for liquid level gauge or flowmeterMARSH MCBIRNEY INC·Filed 1995·Granted Jul 1, 1997·14 cites·17 claims
- 0544US4156228AAcoustic transducer with acoustic isolating mounting baseEG & G INT·Filed 1977·Granted May 22, 1979·9 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →