Inventor · disambiguated record
David A. Keech
Also filed as: KEECH DAVID A
4 granted patents·57 citations·filing 1977–1982
77Inventor score
Top patents by PatentIndex Score
4 records- 0157US4305548AEnergy loss detection systemARMSTRONG MACHINE WORKS·Filed 1980·Granted Dec 15, 1981·20 cites·9 claims
- 0256US4149557AInverted bucket steam trapARMSTRONG MACHINE WORKS·Filed 1977·Granted Apr 17, 1979·15 cites·8 claims
- 0349US4468962AEnergy loss detection systemARMSTRONG INT INC·Filed 1982·Granted Sep 4, 1984·14 cites·9 claims
- 0434US4456173AEnergy loss detection systemARMSTRONG INT INC·Filed 1981·Granted Jun 26, 1984·8 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when David A. Keech files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →