Inventor · disambiguated record
Ralph L. Sheffer
Also filed as: SHEFFER RALPH L
4 granted patents·125 citations·filing 1975–1983
79Inventor score
Files withADAMS RITE PRODUCTS INC4
Top patents by PatentIndex Score
4 records- 0188US4003614ADrawer handle with locking mechanismADAMS RITE PRODUCTS INC·Filed 1975·Granted Jan 18, 1977·56 cites·13 claims
- 0284US4006951ALocking mechanism for a slide drawerADAMS RITE PRODUCTS INC·Filed 1975·Granted Feb 8, 1977·45 cites·17 claims
- 0347US4141520AFail-safe lock for an airplane rudderADAMS RITE PRODUCTS INC·Filed 1977·Granted Feb 27, 1979·16 cites·16 claims
- 0437US4520992ASlow-closing valve mechanismADAMS RITE PRODUCTS INC·Filed 1983·Granted Jun 4, 1985·8 cites·15 claims
Join the waitlist — get patent alerts
Get an alert when Ralph L. Sheffer 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 →