Inventor · disambiguated record
John R. Columbia
Also filed as: COLUMBIA JOHN R
14 granted patents·5 pending applications·192 citations·filing 2006–2020
93Inventor score
Files withCOLUMBIA JOHN R19
Top patents by PatentIndex Score
19 records- 0194US8371603B2Maximum security/maximum versatility ball mount assemblyCOLUMBIA JOHN R·Filed 2009·Granted Feb 12, 2013·33 cites·14 claims
- 0292US8840130B2Maximum security/maximum versatility ball mount assemblyCOLUMBIA JOHN R·Filed 2009·Granted Sep 23, 2014·29 cites·19 claims
- 0392US8276932B2Multi-task trailer hitch assemblyCOLUMBIA JOHN R·Filed 2010·Granted Oct 2, 2012·20 cites·6 claims
- 0491US8534695B2Multi-use clevis/ball combination hitch assemblyCOLUMBIA JOHN R·Filed 2010·Granted Sep 17, 2013·20 cites·22 claims
- 0589US8226107B2Maximum security/maximum versatility ball mount assemblyCOLUMBIA JOHN R·Filed 2008·Granted Jul 24, 2012·24 cites·13 claims
- 0688US7784813B2Multi-task trailer hitch assemblyCOLUMBIA JOHN R·Filed 2006·Granted Aug 31, 2010·20 cites·13 claims
- 0787US10800218B2Magnetic fastening and retaining device and methodCOLUMBIA JOHN R·Filed 2017·Granted Oct 13, 2020·6 cites·20 claims
- 0883US9242521B2Multi-function hitch accessory retaining device and methodCOLUMBIA JOHN R·Filed 2013·Granted Jan 26, 2016·10 cites·10 claims
- 0982US9707811B2Multi-task trailer hitch assemblyCOLUMBIA JOHN R·Filed 2014·Granted Jul 18, 2017·9 cites·14 claims
- 1078US11820182B2Magnetic fastening and retaining device and methodCOLUMBIA JOHN R·Filed 2020·Granted Nov 21, 2023·1 cites·20 claims
- 1177US8376387B2Multi-function anti-rotational/anti-theft hitch ball assemblyCOLUMBIA JOHN R·Filed 2008·Granted Feb 19, 2013·13 cites·6 claims
- 1275US9630463B2Maximum security/maximum versatility ball mount assemblyCOLUMBIA JOHN R·Filed 2014·Granted Apr 25, 2017·4 cites·19 claims
- 1362US2009064552A1Hitch-Mounted Vehicle Sign Display AssemblyCOLUMBIA JOHN R·Filed 2008·Application pending·0 cites
- 1459US8915514B2Multi-task trailer hitch assemblyCOLUMBIA JOHN R·Filed 2012·Granted Dec 23, 2014·3 cites·20 claims
- 1558US2007262108A1Hitch-mounted lawn and garden tractor/ATV accessory systemCOLUMBIA JOHN R·Filed 2007·Application pending·0 cites
- 1651US2009302574A1Multi-Function Anti-Rotational/Anti-Theft Hitch Ball AssemblyCOLUMBIA JOHN R·Filed 2008·Application pending·0 cites
- 1750US2010044999A1Hitch-mounted lawn and garden tractor/atv accessory systemCOLUMBIA JOHN R·Filed 2007·Application pending·0 cites
- 1845US10166827B2Multi-function hitch accessory retaining device and methodCOLUMBIA JOHN R·Filed 2016·Granted Jan 1, 2019·0 cites·12 claims
- 1942US2011309599A1Multi-Function Anti-Rotational/Anti-Theft Hitch Ball AssemblyCOLUMBIA JOHN R·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →