Inventor · disambiguated record
Fritz H. Johansson
Also filed as: JOHANSSON FRITZ H · JOHANSSON FRITZ HUGO
5 granted patents·283 citations·filing 1981–2007
85Inventor score
Top patents by PatentIndex Score
5 records- 0193US4457148AElectronic digital combination lockJOHANSSON FRITZ H·Filed 1981·Granted Jul 3, 1984·93 cites·8 claims
- 0287US4770012AElectronic digital combination lockINTELOCK CORP·Filed 1986·Granted Sep 13, 1988·63 cites·9 claims
- 0384US4788527AApparatus and method for device control using a two conductor power lineJOHANSSON FRITZ H·Filed 1984·Granted Nov 29, 1988·57 cites·5 claims
- 0476US7712341B2Electronic combination lockJOHANSSON FRITZ HUGO·Filed 2007·Granted May 11, 2010·13 cites·22 claims
- 0575US5986539AHafe-duplex two-wire DC power-line communication systemULTRACISION INC·Filed 1998·Granted Nov 16, 1999·57 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →