Assignee
PITTSBURGH DES MOINES STEEL
9 granted patents·201 citations·filing 1975–1980
Top patents by PatentIndex Score
9 records- 0190US4041722AImpact resistant tank for cryogenic fluidsPITTSBURGH DES MOINES STEEL·Filed 1975·Granted Aug 16, 1977·82 cites·42 claims
- 0269US4244152AJoint for geodesic domePITTSBURGH DES MOINES STEEL·Filed 1978·Granted Jan 13, 1981·32 cites·6 claims
- 0361US4130217ASeal arrangement for floating roof storage tanksPITTSBURGH DES MOINES STEEL·Filed 1977·Granted Dec 19, 1978·21 cites·24 claims
- 0454US4134515AEmergency roof drain for floating roof storage tanksPITTSBURGH DES MOINES STEEL·Filed 1977·Granted Jan 16, 1979·19 cites·19 claims
- 0546US4225055AInsulation for double wall tanksPITTSBURGH DES MOINES STEEL·Filed 1979·Granted Sep 30, 1980·13 cites·16 claims
- 0641US4283156AJoint for space framesPITTSBURGH DES MOINES STEEL·Filed 1980·Granted Aug 11, 1981·10 cites·5 claims
- 0736US3972444AFloating roof having uniformly distributed buoyancy meansPITTSBURGH DES MOINES STEEL·Filed 1975·Granted Aug 3, 1976·7 cites·17 claims
- 0835US4173291AFloating roof sealPITTSBURGH DES MOINES STEEL·Filed 1978·Granted Nov 6, 1979·7 cites·20 claims
- 0932US4214671AFloating roof drainage systemPITTSBURGH DES MOINES STEEL·Filed 1978·Granted Jul 29, 1980·10 cites·39 claims
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