Prosecution Insights
Last updated: April 19, 2026

Parker-Hannifin Corporation

7 pending office actions

Portfolio Summary

7
Total Pending OAs
4
Final Rejections
3
Non-Final OAs

Pending Office Actions

App #TitleExaminerArt UnitStatusFiled
19104299 O-RING SEALING USING TRIANGULAR GLAND GEOMETRY HEWITT, JAMES M 3679 Final Rejection Feb 17, 2025
18947310 FITTING ASSEMBLY FOR COLLAPSE-RESISTANT HOSE CHOI, WILLIAM SOON 3679 Final Rejection Nov 14, 2024
18911373 Check Valve for Refrigeration Systems REID, MICHAEL ROBERT 3753 Non-Final OA Oct 10, 2024
18476843 FILTER SYSTEM, FILTER MOUNTING MECHANISM, AND FILTER ELEMENTS USED IN AND WITH THE FILTER SYSTEM AND FILTER MOUNTING MECHANISM HOPKINS, ROBERT A 1776 Final Rejection Sep 28, 2023
18357564 GUIDED STRIP SEAL FOR LINEAR ACTUATOR SCHLAK, DANIEL KEITH 2834 Final Rejection Jul 24, 2023
18254622 CONDUCTIVE POLYASPARTIC ESTER BASED COMPOSITIONS YOON, TAE H 1762 Non-Final OA May 26, 2023
17795663 SYSTEM AND METHOD FOR PROVIDING CONTROL OF SCAVENGING OF WASTE ANESTHETIC GAS IN A GAS MACHINE FOR ANESTHESIA OR ANALGESIA MOON, MATTHEW RYAN 3785 Non-Final OA Jul 27, 2022

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