Inventor · disambiguated record
Roger A. Shefford
Also filed as: SHEFFORD ROGER A
3 granted patents·14 citations·filing 1980–1983
62Inventor score
Files withLEER KONINKLIJKE EMBALLAGE3
Top patents by PatentIndex Score
3 records- 0153US4371574AEnclosure member substantially impermeable to the transmission of solvents and fuelsLEER KONINKLIJKE EMBALLAGE·Filed 1980·Granted Feb 1, 1983·12 cites·5 claims
- 0225US4503103AEnclosure member consisting essentially of solid, non-aromatic polymersLEER KONINKLIJKE EMBALLAGE·Filed 1983·Granted Mar 5, 1985·2 cites·5 claims
- 0322US4348436AEnclosure member substantially impermeable to the transmission of solvents and fuelsLEER KONINKLIJKE EMBALLAGE·Filed 1980·Granted Sep 7, 1982·0 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Roger A. Shefford 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 →