Inventor · disambiguated record
Harold R. Havstad
Also filed as: HAVSTAD HAROLD R
10 granted patents·273 citations·filing 1976–1985
90Inventor score
Top patents by PatentIndex Score
10 records- 0182USD244315SResuscitation boardHUDSON OXYGEN THERAPY SALES COMPANY·Filed 1976·Granted May 10, 1977·17 cites·1 claims
- 0277US4143872ALung volume exerciserHUDSON OXYGEN THERAPY SALES CO·Filed 1977·Granted Mar 13, 1979·80 cites·7 claims
- 0371US4398531APercussorHUDSON OXYGEN THERAPY SALES CO·Filed 1981·Granted Aug 16, 1983·42 cites·4 claims
- 0465US4232683ATherapeutic incentive spirometerHUDSON OXYGEN THERAPY SALES CO·Filed 1978·Granted Nov 11, 1980·44 cites·21 claims
- 0565USD245965SOxygen analyzer housingHUDSON OXYGEN THERAPY SALES COMPANY·Filed 1976·Granted Oct 4, 1977·8 cites·1 claims
- 0663US4237906AAntigen injection assemblyHAVSTAD HAROLD R·Filed 1978·Granted Dec 9, 1980·71 cites·1 claims
- 0730US4445503APercussor assemblyHUDSON OXYGEN THERAPY SALES CO·Filed 1981·Granted May 1, 1984·4 cites·3 claims
- 0828US4633856APercussor subassembly for generating gas burstsHUDSON OXYGEN THERAPY SALES CO·Filed 1985·Granted Jan 6, 1987·2 cites·2 claims
- 0928US4566441APercussor subassembly for generating gas burstsHUDSON OXYGEN THERAPY SALES CO·Filed 1984·Granted Jan 28, 1986·2 cites·17 claims
- 1028US4416270APercussorHUDSON OXYGEN THERAPY SALES CO·Filed 1980·Granted Nov 22, 1983·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →