Inventor · disambiguated record
John M. Perhach
Also filed as: PERHACH JOHN M
2 granted patents·57 citations·filing 1982–1986
64Inventor score
Technology areasG01M
Files withARO CORP2
Top patents by PatentIndex Score
2 records- 0179US4715215AMethod and apparatus for testing the fluid-tight sealed integrity of a hermetically-sealed package in a rapidly-stabilized environmentARO CORP·Filed 1986·Granted Dec 29, 1987·47 cites·3 claims
- 0242US4478070AVacuum package tester and methodARO CORP·Filed 1982·Granted Oct 23, 1984·10 cites·17 claims
Join the waitlist — get patent alerts
Get an alert when John M. Perhach files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →