Inventor · disambiguated record
Walter W. Svendsen
Also filed as: SVENDSEN WALTER W
3 granted patents·82 citations·filing 1974–1979
74Inventor score
Files withLONGYEAR CO3
Top patents by PatentIndex Score
3 records- 0175US3930679ADry hole wire core barrel apparatusLONGYEAR CO·Filed 1974·Granted Jan 6, 1976·40 cites·28 claims
- 0266US4266444AHigh-low speed rotary drive mechanismLONGYEAR CO·Filed 1979·Granted May 12, 1981·20 cites·19 claims
- 0357US4309922ARod break-out and make-up toolLONGYEAR CO·Filed 1979·Granted Jan 12, 1982·22 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →