Inventor · disambiguated record
David W. Hughes
Also filed as: HUGHES DAVID · HUGHES DAVID A · HUGHES DAVID W · HUGHES DAVID WARD
31 granted patents·5 pending applications·1,124 citations·filing 1981–2021
98Inventor score
Files withMCDONALD WITHERS & HUGHES INC6THE WELLBOSS COMPANY LLC5VETCO OFFSHORE IND INC5DOW CHEMICAL CO4MOTOROLA INC3
Top patents by PatentIndex Score
36 records- 0195US5163375AMedical wastes disposal systemMCDONALD WITHERS & HUGHES INC·Filed 1991·Granted Nov 17, 1992·62 cites·6 claims
- 0293US5323719AContaminated wastes disposal systemMCDONALD WITHERS & HUGHES INC·Filed 1992·Granted Jun 28, 1994·44 cites·3 claims
- 0392US4392992AChromium-silicon-nitrogen resistor materialMOTOROLA INC·Filed 1981·Granted Jul 12, 1983·42 cites·3 claims
- 0488US8474537B2High capacity wellhead connector having a single annular pistonVOSS ROBERT K·Filed 2008·Granted Jul 2, 2013·46 cites·17 claims
- 0588US4510178AThin film resistor material and methodMOTOROLA INC·Filed 1983·Granted Apr 9, 1985·34 cites·19 claims
- 0687US4591821AChromium-silicon-nitrogen thin film resistor and apparatusMOTOROLA INC·Filed 1984·Granted May 27, 1986·33 cites·26 claims
- 0786US4820657AMethod for altering characteristics of junction semiconductor devicesGEORGIA TECH RES INST·Filed 1987·Granted Apr 11, 1989·83 cites·13 claims
- 0885US11078739B2Downhole tool with bottom composite slipTHE WELLBOSS COMPANY LLC·Filed 2018·Granted Aug 3, 2021·4 cites·18 claims
- 0979US4637419ASubsea control pod valve assemblyVETCO OFFSHORE IND INC·Filed 1984·Granted Jan 20, 1987·31 cites·21 claims
- 1078US10801298B2Downhole tool with tethered ballTHE WELLBOSS COMPANY LLC·Filed 2019·Granted Oct 13, 2020·2 cites·18 claims
- 1177US4607865AConnector, ratcheting typeVETCO OFFSHORE IND INC·Filed 1984·Granted Aug 26, 1986·46 cites·14 claims
- 1276US5245117APersonal use syringe dispensing and collecting systemWITHERS L ANDREW·Filed 1992·Granted Sep 14, 1993·173 cites·9 claims
- 1371US5385105ABurnable wastes collector with liquid absorber and identifierMCDONALD WITHERS & HUGHES INC·Filed 1994·Granted Jan 31, 1995·156 cites·34 claims
- 1467US10633534B2Downhole tool and methods of useDOWNHOLE TECH LLC·Filed 2017·Granted Apr 28, 2020·1 cites·20 claims
- 1565US4613162AMisalignment tieback tool - non-rotating casingVETCO OFFSHORE IND INC·Filed 1984·Granted Sep 23, 1986·26 cites·8 claims
- 1664US2018142096A1Composition of matter and use thereofDOWNHOLE TECH LLC·Filed 2018·Application pending·0 cites
- 1763US5152394APersonal use syringe dispensing and collecting systemMCDONALD WITHERS & HUGHES INC·Filed 1991·Granted Oct 6, 1992·102 cites·24 claims
- 1861US11634958B2Downhole tool with bottom composite slipTHE WELLBOSS COMPANY LLC·Filed 2021·Granted Apr 25, 2023·0 cites·19 claims
- 1961US5167193AMedical wastes disposal systemMCDONALD WITHERS & HUGHES INC·Filed 1991·Granted Dec 1, 1992·96 cites·34 claims
- 2061US2020215719A1Wet Press Concrete Slab and Admixtures For Their ManufactureGCP APPLIED TECH INC·Filed 2020·Application pending·0 cites
- 2160US4874711AMethod for altering characteristics of active semiconductor devicesGEORGIA TECH RES INST·Filed 1988·Granted Oct 17, 1989·28 cites·16 claims
- 2260US4611829AMisalignment tieback tool - swivel connectionVETCO OFFSHORE IND INC·Filed 1984·Granted Sep 16, 1986·22 cites·12 claims
- 2355US8155939B2Particle-surface interaction model and method of determining particle-surface interactionsHUGHES DAVID W·Filed 2008·Granted Apr 10, 2012·2 cites·1 claims
- 2448USD877216SOne-piece slipTHE WELLBOSS COMPANY LLC·Filed 2018·Granted Mar 3, 2020·4 cites·1 claims
- 2547US2009014184A1High capacity wellhead connector having a single annular pistonVOSS ROBERT K·Filed 2007·Application pending·0 cites
- 2645US5259501APersonal use syringe collecting and disposing systemMCDONALD WITHERS & HUGHES INC·Filed 1991·Granted Nov 9, 1993·47 cites·27 claims
- 2744USD877217SOne-piece slipTHE WELLBOSS COMPANY LLC·Filed 2018·Granted Mar 3, 2020·3 cites·1 claims
- 2841US2005036603A1User-defined ring tone fileFiled 2004·Application pending·0 cites
- 2940US4613164AMisalignment tieback tool - rotating casingVETCO OFFSHORE IND INC·Filed 1984·Granted Sep 23, 1986·9 cites·9 claims
- 3036US5458072ADisposable medical wastes collector with liquid absorberFiled 1994·Granted Oct 17, 1995·21 cites·7 claims
- 3136US2017364984A1Cloud Based Ingredient Data ManagementHUGHES DAVID WARD·Filed 2016·Application pending·0 cites
- 3235US4458061A9-Thiabicyclononanediisocyanates and polymers made therefromDOW CHEMICAL CO·Filed 1982·Granted Jul 3, 1984·0 cites·32 claims
- 3332US4581435AAlkyl-substituted thiapolycyclic polyahl and polyurethanes, polyamides and polyureas based thereonDOW CHEMICAL CO·Filed 1984·Granted Apr 8, 1986·1 cites·19 claims
- 3432US4495309AReaction injection molded polyurethanes, polyureas and polyurea-urethanes employing thiapolycyclic polyisocyanatesDOW CHEMICAL CO·Filed 1984·Granted Jan 22, 1985·2 cites·14 claims
- 3532US4477644AReaction injection molded polyurethanes employing thiapolycyclic polyahls as chain extendersDOW CHEMICAL CO·Filed 1983·Granted Oct 16, 1984·2 cites·20 claims
- 3628USD586116SPod bagHUGHES DAVID·Filed 2007·Granted Feb 10, 2009·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →