Prosecution Insights
Last updated: April 19, 2026

Praxair Technology Inc.

16 pending office actions

Portfolio Summary

16
Total Pending OAs
6
Final Rejections
10
Non-Final OAs

Pending Office Actions

App #TitleExaminerArt UnitStatusFiled
18730614 SUPPLEMENTAL REFRIGERATION USING NITROGEN MA, KUN KAI 3763 Non-Final OA Jul 19, 2024
18402961 METHOD FOR PRODUCTION AND SUPPLY OF A DENSIFIED LIQUID OXYGEN PRODUCT FOR SPACE VEHICLE APPLICATIONS PETTITT, JOHN F 3763 Non-Final OA Jan 03, 2024
18402058 SYSTEM AND METHOD FOR COMBINED LIQUEFACTION AND DENSIFICATION OF OXYGEN PETTITT, JOHN F 3763 Non-Final OA Jan 02, 2024
18402103 SYSTEM AND METHOD FOR DENSIFICATION OF LIQUID OXYGEN PETTITT, JOHN F 3763 Non-Final OA Jan 02, 2024
18451194 System and Method for Precooling a Hydrogen Feed Stream with Concurrent Nitrogen Liquefaction MOORE, DEVON TYLEN 3763 Final Rejection Aug 17, 2023
18334883 SYSTEM AND METHOD FOR GAS LIQUEFICATION PETTITT, JOHN F 3763 Final Rejection Jun 14, 2023
18304921 METHOD AND SYSTEM FOR PRE-PURIFICATION OF A FEED AIR STREAM BERNS, DANIEL J 1736 Non-Final OA Apr 21, 2023
18064995 PROCESS FOR GENERATING A PURIFIED HYDROGEN PRODUCT FROM HEAVY HYDROCARBON FEEDSTOCKS PHAN, ANNETTE HOANG-ANH 1736 Non-Final OA Dec 13, 2022
18064406 METHODS USING CARBON DIOXIDE AND OXYGEN TO IMPROVE CHARACTERISTICS OF POULTRY SCOTLAND, REBECCA LYNN 1615 Non-Final OA Dec 12, 2022
18064376 USING OXYGEN IN NANOBUBBLES TO IMPROVE CHARACTERISTICS OF POULTRY WERTZ, ASHLEE ELIZABETH 1612 Final Rejection Dec 12, 2022
17872477 METHODS AND EQUIPMENT FOR USING CARBON DIOXIDE IN POULTRY EGG INCUBATION TO IMPROVE CHARACTERISTICS OF POULTRY SCOTLAND, REBECCA LYNN 1615 Final Rejection Jul 25, 2022
17790161 OXYGEN TRANSPORT MEMBRANE REACTORS FOR DECARBONIZATION IQBAL, SYED TAHA 1736 Non-Final OA Jun 30, 2022
17741578 SYSTEM AND METHOD FOR IMPROVED FLOW DETECTION DURING HIGH FREQUENCY VENTILATION DALE, ABIGAYLE ANN 3785 Final Rejection May 11, 2022
17667861 ACETYLENE FLUID SUPPLY PACKAGE, SYSTEM COMPRISING THE SAME AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE USING THE SAME MERKLING, MATTHEW J 1725 Non-Final OA Feb 09, 2022
17543918 METHOD TO CONTROL SYNGAS COMPOSITION BY REACTOR TEMPERATURE SPEER, JOSHUA MAXWELL 1736 Final Rejection Dec 07, 2021
16067276 SYSTEM FOR COOLING FOOD PRODUCT AXTELL, ASHLEY 1792 Non-Final OA Jun 29, 2018

Managing Praxair Technology Inc.'s Patent Portfolio?

IP Author helps IP teams respond to office actions faster with AI-generated responses, examiner analytics, and prosecution intelligence.

Start Free Trial

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month