Individual holder
UNDERWOOD KEITH R
US·3 granted patents·2 pending applications·2 citations·filing 2006–2025
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0167US2025223790A1Sand Seepage Stream and Wetland Restoration System and Method for Ecological RestorationUNDERWOOD KEITH R·Filed 2025·Application pending·0 cites
- 0260US12252875B2Sand seepage stream and wetland restoration systemUNDERWOOD KEITH R·Filed 2021·Granted Mar 18, 2025·0 cites·11 claims
- 0358US11047124B2Sand seepage stream and wetland restoration system and method for ecological restorationUNDERWOOD KEITH R·Filed 2006·Granted Jun 29, 2021·1 cites·26 claims
- 0458US11047125B2Regenerative stormwater conveyance system and methodUNDERWOOD KEITH R·Filed 2008·Granted Jun 29, 2021·1 cites·18 claims
- 0552US2022056684A1Regenerative stormwater conveyance system and methodUNDERWOOD KEITH R·Filed 2021·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →