Assignee
PENN VIRGINIA CORP
US·4 granted patents·83 citations·filing 1980–1982
Top patents by PatentIndex Score
4 records- 0177US4268320APyroplastoid particles, composition and method of productionPENN VIRGINIA CORP·Filed 1980·Granted May 19, 1981·29 cites·25 claims
- 0273US4294750APyroplastoid particles, composition and method of productionPENN VIRGINIA CORP·Filed 1980·Granted Oct 13, 1981·25 cites·28 claims
- 0358US4544102ADifferential rate screeningPENN VIRGINIA CORP·Filed 1982·Granted Oct 1, 1985·18 cites·79 claims
- 0445US4544101ADifferential rate screeningPENN VIRGINIA CORP·Filed 1982·Granted Oct 1, 1985·11 cites·94 claims
Join the waitlist — get patent alerts
Get an alert when PENN VIRGINIA CORP 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 →