Assignee
CHANG ZONG SHI
TW·3 granted patents·35 citations·filing 1988–1989
Top patents by PatentIndex Score
3 records- 0147US4817664AGas pressure regulatorCHANG ZONG SHI·Filed 1988·Granted Apr 4, 1989·14 cites·1 claims
- 0244US4974629AGas pressure regulator for saving resetting operationCHANG ZONG SHI·Filed 1989·Granted Dec 4, 1990·12 cites·3 claims
- 0338US4974630AGas pressure regulator having side-drafted throttling meansCHANG ZONG SHI·Filed 1989·Granted Dec 4, 1990·9 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when CHANG ZONG SHI files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →