Individual holder
DUVALL LEE J
3 granted patents·37 citations·filing 1975–1977
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0170US4078390ARemoval and recovery of sulfur dioxide from stack gasesDUVALL LEE J·Filed 1976·Granted Mar 14, 1978·32 cites·9 claims
- 0235US3994706ARemoval and recovery of sulfur dioxide from stack gasesDUVALL LEE J·Filed 1975·Granted Nov 30, 1976·5 cites·10 claims
- 0321US4153437ARemoval and recovery of sulfur dioxide from stack gasesDUVALL LEE J·Filed 1977·Granted May 8, 1979·0 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when DUVALL LEE J 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 →