Assignee
SPENCER TURBINE CO
US·11 granted patents·157 citations·filing 1979–2000
Top patents by PatentIndex Score
11 records- 0165US5924163ADemand responsive central vacuum systemSPENCER TURBINE CO·Filed 1997·Granted Jul 20, 1999·31 cites·12 claims
- 0258US4256473AFilter bag attaching meansSPENCER TURBINE CO·Filed 1979·Granted Mar 17, 1981·23 cites·9 claims
- 0355US6245160B1Method for clearing gas linesSPENCER TURBINE CO·Filed 2000·Granted Jun 12, 2001·7 cites·17 claims
- 0453US5045098ABag separatorSPENCER TURBINE CO·Filed 1990·Granted Sep 3, 1991·22 cites·11 claims
- 0550US4476617ABearing installation toolSPENCER TURBINE CO·Filed 1982·Granted Oct 16, 1984·18 cites·8 claims
- 0647US5226938ASeparator assemblySPENCER TURBINE CO·Filed 1991·Granted Jul 13, 1993·18 cites·20 claims
- 0744US4874410AVacuum producing apparatusSPENCER TURBINE CO·Filed 1989·Granted Oct 17, 1989·13 cites·16 claims
- 0835US5378354AArticle/liquid separatorSPENCER TURBINE CO·Filed 1993·Granted Jan 3, 1995·12 cites·11 claims
- 0933US5791870ABlower having reversible connecting flangeSPENCER TURBINE CO·Filed 1997·Granted Aug 11, 1998·5 cites·15 claims
- 1031US6063151AMobile apparatus and method for clearing gas linesSPENCER TURBINE CO·Filed 1998·Granted May 16, 2000·5 cites·16 claims
- 1123US5087274ABag shakerSPENCER TURBINE CO·Filed 1990·Granted Feb 11, 1992·3 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →