Individual holder
CLARK EARL A
3 granted patents·84 citations·filing 1977–1980
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0189US4132238AAutomatic separator valveCLARK EARL A·Filed 1977·Granted Jan 2, 1979·48 cites·10 claims
- 0269US4312181AHeat engine with variable volume displacement meansCLARK EARL A·Filed 1979·Granted Jan 26, 1982·19 cites·33 claims
- 0362US4353683AStirling cycle engine and fluid pumpCLARK EARL A·Filed 1980·Granted Oct 12, 1982·17 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when CLARK EARL A 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 →