Individual holder
SPEER WILLIAM W
US·6 granted patents·207 citations·filing 1986–2018
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
6 records- 0189US10562463B1Vehicle load carrier with integrated handling wheelsSPEER WILLIAM W·Filed 2018·Granted Feb 18, 2020·12 cites·11 claims
- 0289US7600774B1Cam action tightening receiver hitch assemblySPEER WILLIAM W·Filed 2007·Granted Oct 13, 2009·40 cites·9 claims
- 0388US5344175AReceiver hitch mechanism for eliminating movement in trailer hitch receiversSPEER WILLIAM W·Filed 1993·Granted Sep 6, 1994·67 cites·10 claims
- 0474US5232133AApparatus for carrying articles and portable table attachable to a trailer-hitch ballSPEER WILLIAM W·Filed 1992·Granted Aug 3, 1993·41 cites·10 claims
- 0562US4901896AApparatus for connecting article carriers to a trailer hitch ballSPEER WILLIAM W·Filed 1988·Granted Feb 20, 1990·23 cites·8 claims
- 0651US4765636ASteerable wheeled pushcartSPEER WILLIAM W·Filed 1986·Granted Aug 23, 1988·24 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →