Assignee
AIRGAS INC
US·20 granted patents·8 pending applications·131 citations·filing 2007–2025
Top patents by PatentIndex Score
28 records- 0191US8020585B2Apparatus and method for detecting a leak within a duplex valve assemblyAIRGAS INC·Filed 2008·Granted Sep 20, 2011·48 cites·8 claims
- 0287USD921031SCommunications terminal display screen with graphic user interfaceAIRGAS INC·Filed 2019·Granted Jun 1, 2021·46 cites·1 claims
- 0386US7621302B2Coriolis dosing system for filling gas cylindersAIRGAS INC·Filed 2007·Granted Nov 24, 2009·22 cites·15 claims
- 0479US11311958B1Digital welding and cutting efficiency analysis, process evaluation and response feedback system for process optimizationAIRGAS INC·Filed 2019·Granted Apr 26, 2022·1 cites·17 claims
- 0578US10112165B1Apparatus for generating formaldehyde monomer vaporAIRGAS INC·Filed 2017·Granted Oct 30, 2018·2 cites·8 claims
- 0673US10179318B1Method for generating formaldehyde monomer vaporAIRGAS INC·Filed 2017·Granted Jan 15, 2019·1 cites·16 claims
- 0770US10267516B2Method for controlling the BTU content of a flare gasAIRGAS INC·Filed 2017·Granted Apr 23, 2019·2 cites·17 claims
- 0867US9672522B2System and method for capturing and transferring information onto a gas cylinder using a QR codeAIRGAS INC·Filed 2015·Granted Jun 6, 2017·2 cites·11 claims
- 0967US7598494B2Automated FTIR gas analyzerAIRGAS INC·Filed 2007·Granted Oct 6, 2009·6 cites·10 claims
- 1065US2026024430A1Remote monitoring system for hazardous locationsAIRGAS INC·Filed 2025·Application pending·0 cites
- 1163US10751763B2Gas sampling methodsAIRGAS INC·Filed 2017·Granted Aug 25, 2020·1 cites·12 claims
- 1260US11918960B2System and method for dosing wine barrels with sulfur dioxide gasAIRGAS INC·Filed 2021·Granted Mar 5, 2024·0 cites·6 claims
- 1358US2023278148A1Portable jobsite skid systemAIRGAS INC·Filed 2022·Application pending·0 cites
- 1456US2025153393A1System and process for introducing a lance into a concrete mixing truckAIRGAS INC·Filed 2023·Application pending·0 cites
- 1553US12305916B2Method to convert excess liquid oxygen into liquid nitrogenAIRGAS INC·Filed 2021·Granted May 20, 2025·0 cites·8 claims
- 1652US12257656B2Method for pipe purgingAIRGAS INC·Filed 2022·Granted Mar 25, 2025·0 cites·9 claims
- 1752US11920732B2Use of stable isotopes of CO2 to validate cylinder preparationAIRGAS INC·Filed 2020·Granted Mar 5, 2024·0 cites·14 claims
- 1849US11042172B2Method of mixing at least two gasesAIRGAS INC·Filed 2017·Granted Jun 22, 2021·0 cites·2 claims
- 1949US11016513B2Method of mixing at least two gasesAIRGAS INC·Filed 2017·Granted May 25, 2021·0 cites·2 claims
- 2049US2019316736A1Method to evaluate cylinder cleanlinessAIRGAS INC·Filed 2019·Application pending·0 cites
- 2148US11042173B2Method of mixing at least two gasesAIRGAS INC·Filed 2017·Granted Jun 22, 2021·0 cites·5 claims
- 2245US11041590B2Apparatus for filling pressurized gas cartridges for medical useAIRGAS INC·Filed 2019·Granted Jun 22, 2021·0 cites·12 claims
- 2342US11155758B2Method of dosing a system with HCL then evacuating and purgingAIRGAS INC·Filed 2020·Granted Oct 26, 2021·0 cites·11 claims
- 2442US11035570B2Method for removing large amounts of condensate from an underground vault steam system during startupAIRGAS INC·Filed 2018·Granted Jun 15, 2021·0 cites·3 claims
- 2539US2020116307A1Apparatus for controlling the ambient temperature vaporization of carbon dioxideAIRGAS INC·Filed 2018·Application pending·0 cites
- 2639US2020119622A1Method for controlling the ambient temperature vaporization of carbon dioxideAIRGAS INC·Filed 2018·Application pending·0 cites
- 2730US2020056850A1Apparatus for removing large amounts of condensate from an underground vault steam system during startupAIRGAS INC·Filed 2018·Application pending·0 cites
- 2827US2016341620A1Method and system for monitoring pressure in a gas containment unitAIRGAS INC·Filed 2015·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →