Inventor · disambiguated record
John S. Ludwigsen
Also filed as: LUDWIGSEN JOHN S
3 granted patents·175 citations·filing 1983–1984
77Inventor score
Files withCHICAGO BRIDGE & IRON CO3
Top patents by PatentIndex Score
3 records- 0188US4509344AApparatus and method of cooling using stored ice slurryCHICAGO BRIDGE & IRON CO·Filed 1983·Granted Apr 9, 1985·56 cites·36 claims
- 0287US4596120AApparatus and method for cold aqueous liquid and/or ice production, storage and use for cooling and refrigerationCHICAGO BRIDGE & IRON CO·Filed 1984·Granted Jun 24, 1986·71 cites·32 claims
- 0386US4511115APassive structure with energy absorbing capacityCHICAGO BRIDGE & IRON CO·Filed 1984·Granted Apr 16, 1985·48 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →