The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Parker Hannifin Corporation, Parker Aerospace

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Boeing 737. FAA spelling: Parker Hannifin Corporation, Parker Aerospace.

Approved modifications 2 · newest first

2012-07-19ST02638AT · Installation of an improved aircraft toilet rinse/fill shutoff valve and asociated hardware. · 737-100 Series, 737-200 Series, 737-300 Series
2012-05-30ST00859SE · Installation of a flame arrestor, vent scoop access door, pressure relief valve, and fuel tank access door in left... · 737-100 Series, 737-200 Series, 737-300 Series

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.