Inventor · disambiguated record
John R. Underwood
Also filed as: UNDERWOOD JOHN · UNDERWOOD JOHN R
26 granted patents·9 pending applications·135 citations·filing 1975–2024
96Inventor score
Top patents by PatentIndex Score
35 records- 0193US10639197B2Vitrectomy probeNOVARTIS AG·Filed 2017·Granted May 5, 2020·20 cites·14 claims
- 0292US8845666B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2011·Granted Sep 30, 2014·10 cites·16 claims
- 0388US11583441B2Vitrectomy probeALCON INC·Filed 2020·Granted Feb 21, 2023·2 cites·24 claims
- 0487US11844725B2Visually traceable vitrectomy probe capALCON INC·Filed 2020·Granted Dec 19, 2023·2 cites·13 claims
- 0584US11395763B2Vitrectomy probe interfacing componentALCON INC·Filed 2020·Granted Jul 26, 2022·2 cites·5 claims
- 0683US4091349AHigh voltage winding lead and terminal structureGEN ELECTRIC·Filed 1975·Granted May 23, 1978·34 cites·7 claims
- 0781US8888802B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2010·Granted Nov 18, 2014·9 cites·20 claims
- 0880US9517161B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2012·Granted Dec 13, 2016·8 cites·31 claims
- 0980US8747426B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2012·Granted Jun 10, 2014·7 cites·20 claims
- 1079US11883325B2Reduced vibration vitrectomy probeALCON INC·Filed 2020·Granted Jan 30, 2024·1 cites·6 claims
- 1179US8545529B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2011·Granted Oct 1, 2013·7 cites·15 claims
- 1278US9585788B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2012·Granted Mar 7, 2017·6 cites·12 claims
- 1378US7552508B2Caster attachment systemALCON INC·Filed 2006·Granted Jun 30, 2009·8 cites·4 claims
- 1477US9381114B2Vitrectomy probe with adjustable cutter port sizeALCON RES LTD·Filed 2014·Granted Jul 5, 2016·5 cites·7 claims
- 1574US12059374B2Vitrectomy probeALCON INC·Filed 2023·Granted Aug 13, 2024·0 cites·19 claims
- 1671US9095409B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2012·Granted Aug 4, 2015·3 cites·20 claims
- 1771US2024277520A1Adjustable stiffener for surgical instrumentsALCON INC·Filed 2024·Application pending·0 cites
- 1869US9005228B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2011·Granted Apr 14, 2015·2 cites·16 claims
- 1968US9522083B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2012·Granted Dec 20, 2016·2 cites·11 claims
- 2066US8844566B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2011·Granted Sep 30, 2014·1 cites·6 claims
- 2166US2024099885A1Reduced vibration vitrectomy probeALCON INC·Filed 2023·Application pending·0 cites
- 2264US9180049B2Vitrectomy probe with adjustable cutter port sizeALCON RES LTD·Filed 2014·Granted Nov 10, 2015·1 cites·7 claims
- 2364US9095410B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2012·Granted Aug 4, 2015·1 cites·17 claims
- 2463US9101441B2Vitrectomy probe with adjustable cutter port sizeUNDERWOOD JOHN R·Filed 2010·Granted Aug 11, 2015·2 cites·20 claims
- 2562US11998483B2Adjustable stiffener for surgical instrumentsALCON INC·Filed 2020·Granted Jun 4, 2024·0 cites·19 claims
- 2662US7758585B2Pumping chamber for a liquefaction handpieceALCON INC·Filed 2005·Granted Jul 20, 2010·1 cites·5 claims
- 2748US8414546B2Tip assemblyGHANNOUM ZIAD R·Filed 2003·Granted Apr 9, 2013·1 cites·4 claims
- 2848US2008257227A1Tabletop Unit to Base Attachment SystemUNDERWOOD JOHN R·Filed 2007·Application pending·0 cites
- 2947US2012203148A1Therapeutic audio pulse delivery system and processUNDERWOOD JOHN·Filed 2011·Application pending·0 cites
- 3044US2006212037A1Pumping chamber for a liquefaction handpieceALCON INC·Filed 2005·Application pending·0 cites
- 3143US2018369016A1Electronically actuated reciprocating surgical instrumentNOVARTIS AG·Filed 2018·Application pending·0 cites
- 3243US2006224116A1Pumping chamber for a liquefaction handpieceALCON INC·Filed 2005·Application pending·0 cites
- 3342US2006161101A1Surgical system and handpieceALCON INC·Filed 2005·Application pending·0 cites
- 3440US2006058823A1Handpiece pumping chamberDIMALANTA RAMON C·Filed 2004·Application pending·0 cites
- 3537USD1099338SVitrectomy probeALCON INC·Filed 2023·Granted Oct 21, 2025·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →