Assignee
PERFECTION SPRING & STAMPING
US·9 granted patents·292 citations·filing 1983–1994
Top patents by PatentIndex Score
9 records- 0190US4776626ATrunk lid hinge and spring assemblyPERFECTION SPRING & STAMPING·Filed 1987·Granted Oct 11, 1988·77 cites·16 claims
- 0287US5462335AAdjustable lumbar support for seat backsPERFECTION SPRING & STAMPING·Filed 1994·Granted Oct 31, 1995·79 cites·25 claims
- 0383US4889327AMultiple-strand torsion springPERFECTION SPRING & STAMPING·Filed 1988·Granted Dec 26, 1989·40 cites·2 claims
- 0473US4700981APaint drain closure and vehicle panelPERFECTION SPRING & STAMPING·Filed 1986·Granted Oct 20, 1987·30 cites·16 claims
- 0563US4830348ANoise suppressing device for coil springsPERFECTION SPRING & STAMPING·Filed 1988·Granted May 16, 1989·22 cites·13 claims
- 0652US4529179AInternal nut for adjusting the tension of a coil springPERFECTION SPRING & STAMPING·Filed 1983·Granted Jul 16, 1985·15 cites·14 claims
- 0751US4821390AMultiple-strand torsion spring and method of forming the samePERFECTION SPRING & STAMPING·Filed 1988·Granted Apr 18, 1989·13 cites·7 claims
- 0838US4817262APaint drain closure attaching methodPERFECTION SPRING & STAMPING·Filed 1987·Granted Apr 4, 1989·9 cites·1 claims
- 0935US4549325AMethod of making internal nut for adjusting the tension of a coil springPERFECTION SPRING & STAMPING·Filed 1984·Granted Oct 29, 1985·7 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →