Inventor · disambiguated record
Ludwig W. Sepmeyer
Also filed as: SEPMEYER LUDWIG W
3 granted patents·92 citations·filing 1974–1976
75Inventor score
Top patents by PatentIndex Score
3 records- 0182US3985200ABackground sound system and apparatus for masking speechSEPMEYER LUDWIG W·Filed 1974·Granted Oct 12, 1976·37 cites·7 claims
- 0277US3980827ADiversity system for noise-maskingSEPMEYER LUDWIG W·Filed 1974·Granted Sep 14, 1976·28 cites·11 claims
- 0368US4010324ABackground noisemasking systemJARVIS JOHN P·Filed 1976·Granted Mar 1, 1977·27 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →