Inventor · disambiguated record
Alfred M. Hestad
Also filed as: HESTAD ALFRED M · HESTAD ALFRED MAGNUS
8 granted patents·171 citations·filing 1975–1984
86Inventor score
Top patents by PatentIndex Score
8 records- 0190US4232200ADialing systemUNITED NETWORKS INC·Filed 1978·Granted Nov 4, 1980·71 cites·14 claims
- 0282US4410765ATelephone call routing and charging systemUNITED NETWORKS INC·Filed 1981·Granted Oct 18, 1983·66 cites·25 claims
- 0361US4588865AMusic on hold for key systemsVODAVI TECHNOLOGY CORP·Filed 1984·Granted May 13, 1986·16 cites·4 claims
- 0454US4167655APush button to rotary dial converter systemsUNITED NETWORKS INC·Filed 1977·Granted Sep 11, 1979·8 cites·5 claims
- 0541US4346261ASpeaker phonesUNITED NETWORKS INC·Filed 1980·Granted Aug 24, 1982·7 cites·15 claims
- 0633US4278843ATwo-way amplifier arrangementANACONDA ERICSSON INC·Filed 1975·Granted Jul 14, 1981·2 cites·9 claims
- 0729US4314107ASubscriber station networksUNITED NETWORKS INC·Filed 1979·Granted Feb 2, 1982·1 cites·11 claims
- 0821US4087645ATelephone switching systemHESTAD ALFRED MAGNUS·Filed 1976·Granted May 2, 1978·0 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →