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Ridgefield, WA, United States of America

David W Hansen

USPTO Granted Patents = 4

Average Co-Inventor Count = 1.3

ph-index = 4

Forward Citations = 48(Granted Patents)

Location History:

Ridgefield, WA (US) (1989 - 1994)
Suttons Bay, MI (US) (1995)
Sandy, UT (US) (1996)

Company Filing History:

4 out of 832,812

Other

patents

Years Active: 1989-1996

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5547268 - Traction device for tracked vehicle (1996-08-20),

2. 5441285 - Sled attachment for a conventional carrying cart (1995-08-15),

3. 5318141 - Low impact tracked vehicles (1994-06-07),

4. 4813477 - Heat exchanger-filter apparatus for hydrostatic system (1989-03-21),

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