Inventor · disambiguated record
Norman B. Christensen
Also filed as: CHRISTENSEN NORMAN B
4 granted patents·74 citations·filing 1981–1993
78Inventor score
Top patents by PatentIndex Score
4 records- 0177US4588163AValve stem travel limiting apparatusDANA CORP·Filed 1983·Granted May 13, 1986·36 cites·4 claims
- 0250US5381822ARelief valve with hydraulic fuseDANA CORP·Filed 1993·Granted Jan 17, 1995·14 cites·13 claims
- 0349US5309936APoppet configuration for counterbalance valveDANA CORP·Filed 1993·Granted May 10, 1994·12 cites·13 claims
- 0447US4365429AMaximum lift system for hydraulic hoeBUCYRUS ERIE CO·Filed 1981·Granted Dec 28, 1982·12 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →