Assignee
HARRISBURG INC
US·4 granted patents·208 citations·filing 1986–1990
Top patents by PatentIndex Score
4 records- 0194US5088521AMud pump valveHARRISBURG INC·Filed 1990·Granted Feb 18, 1992·154 cites·12 claims
- 0276US5062452AValve member and method of making such a memberHARRISBURG INC·Filed 1990·Granted Nov 5, 1991·37 cites·8 claims
- 0343US5028324AStretching mechanism for a screenHARRISBURG INC·Filed 1989·Granted Jul 2, 1991·12 cites·5 claims
- 0434US4675966AMethod for manufacturing a guide base of a valveHARRISBURG INC·Filed 1986·Granted Jun 30, 1987·5 cites·15 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →