Assignee
PITTSBURGH DES MOINES CORP
16 granted patents·216 citations·filing 1979–1985
Top patents by PatentIndex Score
16 records- 0180USD275306SCombined water storage tank and buildingPITTSBURGH DES MOINES CORP·Filed 1982·Granted Aug 28, 1984·17 cites·1 claims
- 0277US4313457ARemovable condensate collector for elevated water storage facilitiesPITTSBURGH DES MOINES CORP·Filed 1979·Granted Feb 2, 1982·33 cites·9 claims
- 0363US4403460AMethod of erecting an elevated tank using formworkPITTSBURGH DES MOINES CORP·Filed 1981·Granted Sep 13, 1983·24 cites·14 claims
- 0463US4297825AStrut for space framesPITTSBURGH DES MOINES CORP·Filed 1980·Granted Nov 3, 1981·25 cites·6 claims
- 0558US4625521ALiquid nitrogen distribution systemPITTSBURGH DES MOINES CORP·Filed 1985·Granted Dec 2, 1986·18 cites·13 claims
- 0657US4450855ARemovable condensate collector for elevated water storage facilitiesPITTSBURGH DES MOINES CORP·Filed 1982·Granted May 29, 1984·15 cites·14 claims
- 0754USD265226SCombined water storage tank and buildingPITTSBURGH DES MOINES CORP·Filed 1980·Granted Jun 29, 1982·8 cites·1 claims
- 0851USD275307SCombined water storage tank and buildingPITTSBURGH DES MOINES CORP·Filed 1982·Granted Aug 28, 1984·5 cites·1 claims
- 0949US4308967AProtection ring for limiting the width of cracks in a storage tank wallPITTSBURGH DES MOINES CORP·Filed 1980·Granted Jan 5, 1982·15 cites·16 claims
- 1047USD275308SCombined water storage tank and buildingPITTSBURGH DES MOINES CORP·Filed 1982·Granted Aug 28, 1984·4 cites·1 claims
- 1146US4327554ASpill condition venting systemPITTSBURGH DES MOINES CORP·Filed 1979·Granted May 4, 1982·11 cites·38 claims
- 1244US4474490AJoint for space framesPITTSBURGH DES MOINES CORP·Filed 1981·Granted Oct 2, 1984·12 cites·18 claims
- 1337US4513547AMulti-purpose elevated water storage facilitiesPITTSBURGH DES MOINES CORP·Filed 1982·Granted Apr 30, 1985·8 cites·9 claims
- 1430US4339052ASecondary seal for floating roof storage tanksPITTSBURGH DES MOINES CORP·Filed 1981·Granted Jul 13, 1982·5 cites·10 claims
- 1528US4486988AMulti-purpose elevated water storage facilityPITTSBURGH DES MOINES CORP·Filed 1982·Granted Dec 11, 1984·10 cites·20 claims
- 1627US4402422AField adjustable sealPITTSBURGH DES MOINES CORP·Filed 1981·Granted Sep 6, 1983·6 cites·12 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →