Assignee
SF VOLLVERBUNDSTEIN
DE·4 granted patents·235 citations·filing 1978–1990
Top patents by PatentIndex Score
4 records- 0190US4193718AEarth retaining wall of vertically stacked chevron shaped concrete blocksSF VOLLVERBUNDSTEIN·Filed 1978·Granted Mar 18, 1980·108 cites·2 claims
- 0284US4711606AShaped (concrete) block for retaining walls and also a retaining wallSF VOLLVERBUNDSTEIN·Filed 1986·Granted Dec 8, 1987·62 cites·14 claims
- 0375US5224792AShaped (concrete) slab kitSF VOLLVERBUNDSTEIN·Filed 1989·Granted Jul 6, 1993·35 cites·32 claims
- 0467US5281048APlate-shaped concrete block and process and device for the manufacture of the sameSF VOLLVERBUNDSTEIN·Filed 1990·Granted Jan 25, 1994·30 cites·11 claims
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