Inventor · disambiguated record
John D. Eckel
Also filed as: ECKEL JOHN · ECKEL JOHN D
8 granted patents·191 citations·filing 1977–1996
88Inventor score
Files withMCDONALD MFG CO A Y8
Top patents by PatentIndex Score
8 records- 0183US4131142ASafety valve for fuel dispensers including vapor recovery systemsMCDONALD MFG CO A Y·Filed 1977·Granted Dec 26, 1978·41 cites·6 claims
- 0281US5076541ATamperproof rotary valveMCDONALD MFG CO A Y·Filed 1991·Granted Dec 31, 1991·58 cites·8 claims
- 0372US4303833ANatural energy operated pump systemMCDONALD MFG CO A Y·Filed 1980·Granted Dec 1, 1981·31 cites·11 claims
- 0469US4218042ABall valve constructionMCDONALD MFG CO A Y·Filed 1978·Granted Aug 19, 1980·23 cites·1 claims
- 0546US5102098ATamperproof rotary valveMCDONALD MFG CO A Y·Filed 1991·Granted Apr 7, 1992·15 cites·5 claims
- 0641US5799687ASecurity valve assemblyMCDONALD MFG CO A Y·Filed 1996·Granted Sep 1, 1998·9 cites·11 claims
- 0736US4984767ATamperproof rotary valveMCDONALD MFG CO A Y·Filed 1990·Granted Jan 15, 1991·9 cites·6 claims
- 0835US5836340AAuxiliary gas connection for meter setsMCDONALD MFG CO A Y·Filed 1996·Granted Nov 17, 1998·5 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →