Individual holder
BERTRAM RICHARD L
US·4 granted patents·60 citations·filing 1986–1998
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0170US4792493ACorrosion resistant coating and liner combinationBERTRAM RICHARD L·Filed 1986·Granted Dec 20, 1988·27 cites·7 claims
- 0252US5268392ADeteriorated structure repair method and substratum for restoring and lining corroded structureBERTRAM RICHARD L·Filed 1992·Granted Dec 7, 1993·21 cites·22 claims
- 0333US6673193B1System and method for welding a seam between thermoplastic liner sheetsBERTRAM RICHARD L·Filed 1998·Granted Jan 6, 2004·7 cites·24 claims
- 0431US6967045B1Integrated composite structural conduit formed in placeBERTRAM RICHARD L·Filed 1998·Granted Nov 22, 2005·5 cites·14 claims
Join the waitlist — get patent alerts
Get an alert when BERTRAM RICHARD L 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 →