Inventor · disambiguated record
Donald B. Hazen
Also filed as: HAZEN DONALD B
3 granted patents·63 citations·filing 1993–2021
71Inventor score
Files withHAZEN DONALD B1
Top patents by PatentIndex Score
3 records- 0176US6626449B2Double-castered wheel trailer having lockable caster wheelsFiled 2001·Granted Sep 30, 2003·33 cites·16 claims
- 0268US11407263B1Swivel trailerHAZEN DONALD B·Filed 2021·Granted Aug 9, 2022·1 cites·12 claims
- 0362US5368325AUniversal single-wheel single beam trailer having adjustable bedFiled 1993·Granted Nov 29, 1994·29 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →