Inventor · disambiguated record
Douglas L. Spike
Also filed as: SPIKE DOUGLAS L
4 granted patents·246 citations·filing 1990–1994
82Inventor score
Technology areasA63B
Top patents by PatentIndex Score
4 records- 0185US5092602AGolfing apparatusWITLER JAMES L·Filed 1990·Granted Mar 3, 1992·84 cites·4 claims
- 0281US5486002AGolfing apparatusPLUS4 ENG INC·Filed 1994·Granted Jan 23, 1996·75 cites·22 claims
- 0374US5375832AGolfing apparatusFiled 1993·Granted Dec 27, 1994·53 cites·9 claims
- 0465US5290037AGolfing apparatusWITLER JAMES L·Filed 1991·Granted Mar 1, 1994·34 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →