Inventor · disambiguated record
David W. Daugherty, Jr.
Also filed as: DAUGHERTY DAVID · DAUGHERTY DAVID W · DAUGHERTY DAVID W JR · DAUGHERTY JR DAVID W
45 granted patents·7 pending applications·530 citations·filing 1990–2024
98Inventor score
Files withWESTINGHOUSE AIR BRAKE CO29WESTINGHOUSE AIR BRAKE TECH CORP6HIGHER GROUND LLC5BOWMAN CHRIS3CISTANT LLC2
Top patents by PatentIndex Score
52 records- 0187US9781581B1System and method for sending messagesHIGHER GROUND LLC·Filed 2017·Granted Oct 3, 2017·7 cites·22 claims
- 0282US6196362B1Lock bolt with modified end cap for slack adjusterWESTINGHOUSE AIR BRAKE CO·Filed 1999·Granted Mar 6, 2001·47 cites·20 claims
- 0379US10115325B2System to display a flag and method to manufacture the systemC J LTD LLC·Filed 2016·Granted Oct 30, 2018·7 cites·21 claims
- 0478US5271511ARemovable shaft member engageable in a ball portion of articulated bearing assemblyWESTINGHOUSE AIR BRAKE CO·Filed 1992·Granted Dec 21, 1993·40 cites·22 claims
- 0576US10404358B2Return path congestion mitigation for satellite communicationsHIGHER GROUND LLC·Filed 2017·Granted Sep 3, 2019·2 cites·21 claims
- 0671US6237785B1Retainer member for use in railway coupling devicesWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted May 29, 2001·27 cites·13 claims
- 0771US6179093B1Power source activated handbrake release mechanismWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted Jan 30, 2001·31 cites·23 claims
- 0869US5219082AMale connection member for an articulated coupling arrangementWESTINGHOUSE AIR BRAKE CO·Filed 1990·Granted Jun 15, 1993·29 cites·19 claims
- 0967US7533780B2Spherical ball/race in coupler buttWABTEC HOLDING CORP·Filed 2005·Granted May 19, 2009·3 cites·20 claims
- 1067US6176379B1Ball and race assembly including a one piece race member integrally formed with the ballWESTINGHOUSE AIR BRAKE CO·Filed 1999·Granted Jan 23, 2001·23 cites·10 claims
- 1166US6279696B1Suspension system for a truck mounted brake assemblyWESTINGHOUSE AIR BRAKE TECH CORP·Filed 1999·Granted Aug 28, 2001·26 cites·33 claims
- 1266US2025060242A1Systems and Methods for Determining a Weight Rating of a TransporterCISTANT LLC·Filed 2024·Application pending·0 cites
- 1365US7631079B1System and method of messaging and obtaining message acknowledgement on a networkBOWMAN CHRIS·Filed 2007·Granted Dec 8, 2009·5 cites·19 claims
- 1460US6390313B1Slackless drawbar assembly using an improved ball and race connection assemblyWESTINGHOUSE AIR BRAKE TECH CORP·Filed 1998·Granted May 21, 2002·18 cites·12 claims
- 1559US6691883B1One piece liner member for use in railway coupling devicesWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted Feb 17, 2004·20 cites·21 claims
- 1659US5558238AFreight railway car slackless drawbar assemblyWESTINGHOUSE AIR BRAKE CO·Filed 1995·Granted Sep 24, 1996·21 cites·20 claims
- 1758US12158369B2Systems and methods for determining a weight rating of a transporterCISTANT LLC·Filed 2022·Granted Dec 3, 2024·0 cites·1 claims
- 1858US6564956B2Retainer member for use in railway coupling devicesWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2000·Granted May 20, 2003·5 cites·18 claims
- 1958US5042393ALocking assembly to secure a bearing assembly in an articulated coupling apparatus for connecting adjacent ends of a pair of railway carsWESTINGHOUSE AIR BRAKE CO·Filed 1990·Granted Aug 27, 1991·19 cites·8 claims
- 2057US6148966AAdapter system for a railway vehicle braking systemWESTINGHOUSE AIR BRAKE CO·Filed 1999·Granted Nov 21, 2000·21 cites·23 claims
- 2157US5065679AArticulated coupling apparatus for connecting adjacent ends of a pair of railway cars together in a semipermanent mannerWESTINGHOUSE AIR BRAKE CO·Filed 1990·Granted Nov 19, 1991·19 cites·46 claims
- 2256US10924181B2Return path congestion mitigation for satellite communicationsHIGHER GROUND LLC·Filed 2019·Granted Feb 16, 2021·0 cites·23 claims
- 2354US6024233ALocking wedge assembly for a slackless drawbar assemblyFiled 1998·Granted Feb 15, 2000·16 cites·20 claims
- 2453US5590797AFriction clutch mechanism for high capacity draft gear assembly and method of reconditioning draft gear with such friction clutch mechanismWESTINGHOUSE AIR BRAKE CO·Filed 1995·Granted Jan 7, 1997·21 cites·16 claims
- 2553US5131331AArticulated coupling apparatus for connecting adjacent ends of a pair of railway carsWESTINGHOUSE AIR BRAKE CO·Filed 1990·Granted Jul 21, 1992·17 cites·46 claims
- 2650US5105955ASpherical connector apparatus in an articulated slackless-type coupler arrangement used in a railway applicationWESTINGHOUSE AIR BRAKE CO·Filed 1990·Granted Apr 21, 1992·14 cites·43 claims
- 2747US5560503ALubricating apparatus for articulated coupling arrangementWESTINGHOUSE AIR BRAKE CO·Filed 1995·Granted Oct 1, 1996·12 cites·15 claims
- 2847US2013118044A1System to display a flag and method to manufacture the systemSCATURRO ANTHONY·Filed 2012·Application pending·0 cites
- 2946US5544767AFreight railway car slackless drawbar assemblyWESTINGHOUSE AIR BRAKE CO·Filed 1995·Granted Aug 13, 1996·12 cites·18 claims
- 3045US9712984B1System and method for sending messagesHIGHER GROUND LLC·Filed 2017·Granted Jul 18, 2017·0 cites·29 claims
- 3145US5277323ALocking wedge assembly to removably secure a male connection member in an articulated-type coupling arrangementWESTINGHOUSE AIR BRAKE CO·Filed 1991·Granted Jan 11, 1994·11 cites·20 claims
- 3244US7383961B2Taper lugs on draft gear platesWABTEC HOLDING CORP·Filed 2005·Granted Jun 10, 2008·0 cites·18 claims
- 3341US10523684B2Forward path congestion mitigation for satellite communicationsHIGHER GROUND LLC·Filed 2017·Granted Dec 31, 2019·0 cites·22 claims
- 3440US6938786B2Slackless drawbar assembly using an improved ball and race connection assemblyWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2002·Granted Sep 6, 2005·0 cites·14 claims
- 3540US6688482B1Connection assembly for railway coupling devicesWESTINGHOUSE AIR BRAKE TECH CORP·Filed 1998·Granted Feb 10, 2004·8 cites·31 claims
- 3640US6269916B1Brake cylinder using dual piston assembliesWESTINGHOUSE AIR BRAKE CO·Filed 1999·Granted Aug 7, 2001·8 cites·14 claims
- 3740US2005242053A1System for self-lubricating a coupling systemWESTINGHOUSE AIR BRAKE TECH CORP·Filed 2004·Application pending·0 cites
- 3839US6073787ACarrier plate assembly for a slackless drawbar assemblyWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted Jun 13, 2000·7 cites·18 claims
- 3937US2007140275A1Method of preventing denial of service attacks in a cellular networkBOWMAN CHRIS·Filed 2006·Application pending·0 cites
- 4037US2007140121A1Method of preventing denial of service attacks in a networkBOWMAN CHRIS·Filed 2006·Application pending·0 cites
- 4135US5794536AEnd design for a railway type freight carWESTINGHOUSE AIR BRAKE CO·Filed 1996·Granted Aug 18, 1998·6 cites·7 claims
- 4235US5167334AApparatus to provide versatility in securing male and female connection members of an articulated coupler to a center sill member of a railway carWESTINGHOUSE AIR BRAKE CO·Filed 1990·Granted Dec 1, 1992·5 cites·17 claims
- 4334US5979679AMethod for installing a locking wedge and carrier plate assemblyWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted Nov 9, 1999·4 cites·17 claims
- 4433US5139159AConnecting pin for articulated coupling arrangementWESTINGHOUSE AIR BRAKE CO·Filed 1990·Granted Aug 18, 1992·4 cites·38 claims
- 4533US5080243AAssembly mechanism for an articulated coupling systemWESTINGHOUSE AIR BRAKE CO·Filed 1990·Granted Jan 14, 1992·4 cites·40 claims
- 4633US2015249580A1System and method for providing uncapped internet bandwidthKORCETT HOLDINGS INC·Filed 2015·Application pending·0 cites
- 4733US2004028561A1System for the detection of pathogens in the mail streamLOCKHEED CORP·Filed 2002·Application pending·0 cites
- 4831US6062653ABrake valve system for dedicated freight carsWESTINGHOUSE AIR BRAKE CO·Filed 1998·Granted May 16, 2000·5 cites·9 claims
- 4931US5462179ASlackless drawbar assembly using a ball and race assembly at each end of the drawbarWESTINGHOUSE AIR BRAKE CO·Filed 1994·Granted Oct 31, 1995·2 cites·34 claims
- 5031US5172820AFemale connection member used in an articulated coupling arrangementWESTINGHOUSE AIR BRAKE CO·Filed 1991·Granted Dec 22, 1992·2 cites·16 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →