Inventor · disambiguated record
Robert Lloyd Waterfield
Also filed as: WATERFIELD ROBERT L · WATERFIELD ROBERT LLOYD
14 granted patents·241 citations·filing 1981–2019
93Inventor score
Technology areasF41A
Top patents by PatentIndex Score
14 records- 0193US9488423B2Firearm systems and methodsARM WEST LLC·Filed 2015·Granted Nov 8, 2016·20 cites·30 claims
- 0288US4384508ADrum magazine for a gunSINGAPORE CHARTERED IND·Filed 1981·Granted May 24, 1983·50 cites·27 claims
- 0386US9228786B2Quick barrel change firearmSULLIVAN LEROY JAMES·Filed 2012·Granted Jan 5, 2016·37 cites·22 claims
- 0486US8813406B1High capacity magazine with multiple springsARMWEST LLC·Filed 2013·Granted Aug 26, 2014·22 cites·24 claims
- 0585US8739446B2High capacity magazine with multiple springsSULLIVAN LEROY JAMES·Filed 2011·Granted Jun 3, 2014·24 cites·44 claims
- 0684US9038525B2FirearmSULLIVAN LEROY JAMES·Filed 2012·Granted May 26, 2015·25 cites·33 claims
- 0775US4445418ADrum magazine for a gunSINGAPORE CHARTERED IND·Filed 1982·Granted May 1, 1984·27 cites·9 claims
- 0872USD645112SMagazine for a firearmARMWEST LLC·Filed 2010·Granted Sep 13, 2011·19 cites·1 claims
- 0951US10415906B2Firearm systems and methodsARM WEST LLC·Filed 2016·Granted Sep 17, 2019·1 cites·22 claims
- 1047US11137222B2Firearm systems and methodsARM WEST LLC·Filed 2019·Granted Oct 5, 2021·0 cites·20 claims
- 1147USD646742SMagazine for a firearmARMWEST LLC·Filed 2010·Granted Oct 11, 2011·6 cites·1 claims
- 1241USD646743SMagazine for a firearmARMWEST LLC·Filed 2010·Granted Oct 11, 2011·4 cites·1 claims
- 1338USD646744SMagazine for a firearmARMWEST LLC·Filed 2010·Granted Oct 11, 2011·3 cites·1 claims
- 1438USD645111SMagazine for a firearmARMWEST LLC·Filed 2010·Granted Sep 13, 2011·3 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Robert Lloyd Waterfield 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 →