Inventor · disambiguated record
Leonard J. Armstrong
Also filed as: ARMSTRONG LEONARD J
4 granted patents·87 citations·filing 1973–1992
78Inventor score
Top patents by PatentIndex Score
4 records- 0170US3933871AFabric softener compound and processes for preparing and using the sameARMSTRONG CHEMICAL COMPANY INC·Filed 1973·Granted Jan 20, 1976·16 cites·5 claims
- 0268US5305843APower driven wheel barrowARMSTRONG LEONARD J·Filed 1992·Granted Apr 26, 1994·29 cites·8 claims
- 0363US4052035ARemotely-controlled valveCONSERVOCON INC·Filed 1975·Granted Oct 4, 1977·38 cites·5 claims
- 0428US4747213ATool supportARMSTRONG LEONARD J·Filed 1986·Granted May 31, 1988·4 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Leonard J. Armstrong 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 →