Inventor · disambiguated record
Richard W. Spraggs
Also filed as: SPRAGGS RICHARD W · SPRAGGS RICHARD WILLIAM
3 granted patents·79 citations·filing 1975–1990
74Inventor score
Technology areasF42D
Files withENSIGN BICKFORD CO3
Top patents by PatentIndex Score
3 records- 0185US3987732ANon-electric double delay borehole downline unit for blasting operationsENSIGN BICKFORD CO·Filed 1975·Granted Oct 26, 1976·43 cites·9 claims
- 0267US3987733AMillisecond delay surface connectorENSIGN BICKFORD CO·Filed 1975·Granted Oct 26, 1976·21 cites·15 claims
- 0344US5009163ANon-electric signal transmission device connection, method and apparatus thereforENSIGN BICKFORD CO·Filed 1990·Granted Apr 23, 1991·15 cites·14 claims
Join the waitlist — get patent alerts
Get an alert when Richard W. Spraggs 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 →