Assignee
CONCRETE PIPE & PRODUCTS CORP
US·7 granted patents·196 citations·filing 1981–1989
Top patents by PatentIndex Score
7 records- 0189US4426095AFlexible sealCONCRETE PIPE & PRODUCTS CORP·Filed 1981·Granted Jan 17, 1984·86 cites·5 claims
- 0271US4429886AFlexible pipe gasketCONCRETE PIPE & PRODUCTS CORP·Filed 1982·Granted Feb 7, 1984·34 cites·8 claims
- 0363US4558850ANoise barrierCONCRETE PIPE & PRODUCTS CORP·Filed 1984·Granted Dec 17, 1985·19 cites·8 claims
- 0461US4921204AAdjustable median barrier moldCONCRETE PIPE & PRODUCTS CORP·Filed 1989·Granted May 1, 1990·25 cites·8 claims
- 0553US4862992ANoise barrierCONCRETE PIPE & PRODUCTS CORP·Filed 1988·Granted Sep 5, 1989·20 cites·7 claims
- 0637US4494576AReinforcing system for concrete pipeCONCRETE PIPE & PRODUCTS CORP·Filed 1983·Granted Jan 22, 1985·10 cites·5 claims
- 0727US4428522AStep driverCONCRETE PIPE & PRODUCTS CORP·Filed 1981·Granted Jan 31, 1984·2 cites·12 claims
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