Inventor · disambiguated record
Zheng Duan
Also filed as: DUAN ZHENG
47 granted patents·6 pending applications·531 citations·filing 2003–2025
98Inventor score
Files withHYPERTHERM INC34SAMSUNG ELECTRONICS CO LTD4UNIV TSINGHUA3BOE TECHNOLOGY GROUP CO LTD2BRANDT AARON D2
Top patents by PatentIndex Score
53 records- 0197US8698036B1Devices for gas cooling plasma arc torches and related systems and methodsHYPERTHERM INC·Filed 2013·Granted Apr 15, 2014·65 cites·27 claims
- 0296US11684995B2Cost effective cartridge for a plasma arc torchHYPERTHERM INC·Filed 2020·Granted Jun 27, 2023·8 cites·32 claims
- 0395US10912183B2Swirl ring and contact element for a plasma arc torch cartridgeHYPERTHERM INC·Filed 2018·Granted Feb 2, 2021·7 cites·36 claims
- 0495US8395077B2Plasma arc torch providing angular shield flow injectionDUAN ZHENG·Filed 2010·Granted Mar 12, 2013·48 cites·27 claims
- 0595US7598473B2Generating discrete gas jets in plasma arc torch applicationsHYPERTHERM INC·Filed 2006·Granted Oct 6, 2009·77 cites·15 claims
- 0694US10381550B1Method and system for engineering the secondary barrier layer in dual magnetic junctionsSAMSUNG ELECTRONICS CO LTD·Filed 2018·Granted Aug 13, 2019·8 cites·18 claims
- 0793US10321551B2Cost effective cartridge for a plasma arc torchHYPERTHERM INC·Filed 2016·Granted Jun 11, 2019·13 cites·29 claims
- 0892US10462891B2Cost effective cartridge for a plasma arc torchHYPERTHERM INC·Filed 2016·Granted Oct 29, 2019·9 cites·26 claims
- 0992US7605340B2Apparatus for cooling plasma arc torch nozzlesHYPERTHERM INC·Filed 2006·Granted Oct 20, 2009·40 cites·24 claims
- 1091US10582605B2Cost effective cartridge for a plasma arc torchHYPERTHERM INC·Filed 2015·Granted Mar 3, 2020·9 cites·26 claims
- 1190US8541710B2Method and apparatus for automatic gas control for a plasma arc torchBRANDT AARON D·Filed 2008·Granted Sep 24, 2013·36 cites·20 claims
- 1290US7829816B2Plasma arc torch providing angular shield flow injectionHYPERTHERM INC·Filed 2006·Granted Nov 9, 2010·32 cites·44 claims
- 1388US12280441B2Swirl ring and contact element for a plasma arc torch cartridgeHYPERTHERM INC·Filed 2021·Granted Apr 22, 2025·2 cites·23 claims
- 1488US7193174B2Method and apparatus for alignment of components of a plasma arc torchHYPERTHERM INC·Filed 2006·Granted Mar 20, 2007·24 cites·11 claims
- 1588US6946617B2Method and apparatus for alignment of components of a plasma arc torchHYPERTHERM INC·Filed 2003·Granted Sep 20, 2005·46 cites·30 claims
- 1685US11770891B2Cost effective cartridge for a plasma arc torchHYPERTHERM INC·Filed 2019·Granted Sep 26, 2023·3 cites·39 claims
- 1784US10866039B2Thermal transistorUNIV TSINGHUA·Filed 2018·Granted Dec 15, 2020·2 cites·10 claims
- 1884US10335888B2Swirl ring and contact element for a plasma arc torch cartridgeHYPERTHERM INC·Filed 2018·Granted Jul 2, 2019·4 cites·23 claims
- 1983US7019255B2Method and apparatus for alignment of components of a plasma ARC torchHYPERTHERM INC·Filed 2004·Granted Mar 28, 2006·32 cites·26 claims
- 2082US11991813B2Cost effective cartridge for a plasma arc torchHYPERTHERM INC·Filed 2019·Granted May 21, 2024·2 cites·24 claims
- 2181US11432393B2Cost effective cartridge for a plasma arc torchHYPERTHERM INC·Filed 2019·Granted Aug 30, 2022·4 cites·17 claims
- 2281US9492883B2Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodesMATHER JONATHAN P·Filed 2012·Granted Nov 15, 2016·6 cites·28 claims
- 2380US8809728B2Method and apparatus for automatic gas control for a plasma arc torchBRANDT AARON D·Filed 2007·Granted Aug 19, 2014·11 cites·16 claims
- 2478US8884179B2Torch flow regulation using nozzle featuresROBERTS JESSE·Filed 2010·Granted Nov 11, 2014·7 cites·35 claims
- 2577US10859329B2Thermal transistorUNIV TSINGHUA·Filed 2018·Granted Dec 8, 2020·2 cites·13 claims
- 2677US9144148B2Devices for gas cooling plasma arc torches and related systems and methodsHYPERTHERM INC·Filed 2013·Granted Sep 22, 2015·5 cites·22 claims
- 2776US9908195B2Plasma cutting system with efficient componentsHYPERTHERM INC·Filed 2015·Granted Mar 6, 2018·3 cites·22 claims
- 2874US7754996B2Method and apparatus for alignment of components of a plasma arc torchHYPERTHERM INC·Filed 2006·Granted Jul 13, 2010·5 cites·19 claims
- 2973US9480139B2Plasma ARC torch electrode with symmetrical plasma gas flowHYPERTHERM INC·Filed 2013·Granted Oct 25, 2016·3 cites·18 claims
- 3070US8866038B2Consumable component parts for a plasma torchLINDSAY JON W·Filed 2007·Granted Oct 21, 2014·6 cites·17 claims
- 3168US10716199B2Devices for gas cooling plasma arc torches and related systems and methodsHYPERTHERM INC·Filed 2013·Granted Jul 14, 2020·2 cites·21 claims
- 3268US10039178B2Failure event detection in a plasma arc torchLIU QINGHUA·Filed 2011·Granted Jul 31, 2018·5 cites·18 claims
- 3367US8513565B2Nozzle head with increased shoulder thicknessDUAN ZHENG·Filed 2008·Granted Aug 20, 2013·4 cites·60 claims
- 3462USRE49153EConsumable component parts for a plasma torchHYPERTHERM INC·Filed 2020·Granted Jul 26, 2022·0 cites·17 claims
- 3561US12345922B2Grating structure, preparation method thereof and display deviceBOE TECHNOLOGY GROUP CO LTD·Filed 2022·Granted Jul 1, 2025·0 cites·15 claims
- 3660US10644226B2Method and system for engineering the secondary barrier layer in dual magnetic junctionsSAMSUNG ELECTRONICS CO LTD·Filed 2019·Granted May 5, 2020·0 cites·18 claims
- 3758US11477854B2Method for controlling thermal resistanceUNIV TSINGHUA·Filed 2018·Granted Oct 18, 2022·0 cites·20 claims
- 3857US10542614B2Apparatus and method for securing a plasma torch electrodeHYPERTHERM INC·Filed 2013·Granted Jan 21, 2020·1 cites·11 claims
- 3957US2025276400A1Systems and methods for high-speed plasma arc processingHYPERTHERM INC·Filed 2025·Application pending·0 cites
- 4054US9326367B2Devices for gas cooling plasma arc torches and related systems and methodsHYPERTHERM INC·Filed 2013·Granted Apr 26, 2016·0 cites·10 claims
- 4154US2009308849A1Method and Apparatus for Alignment of Components of a Plasma Arc TorchHYPERTHERM INC·Filed 2009·Application pending·0 cites
- 4252US10820401B2Operating plasma arc processing systems at reduced current and gas pressure levels and related systems and methodsHYPERTHERM INC·Filed 2017·Granted Oct 27, 2020·0 cites·18 claims
- 4351US2008210670A1Method and apparatus for automatic gas control for a plasma arch torchHYPERTHERM INC·Filed 2008·Application pending·0 cites
- 4448US2006163216A1Automatic gas control for a plasma arc torchHYPERTHERM INC·Filed 2006·Application pending·0 cites
- 4547US2024012189A1Polarizer and manufacturing method thereof, display panel and display apparatusBOE TECHNOLOGY GROUP CO LTD·Filed 2021·Application pending·0 cites
- 4646US10737347B2Thread connection for a torch systemHYPERTHERM INC·Filed 2018·Granted Aug 11, 2020·0 cites·29 claims
- 4745US10276226B2Method and system for determining temperature using a magnetic junctionSAMSUNG ELECTRONICS CO LTD·Filed 2018·Granted Apr 30, 2019·0 cites·1 claims
- 4844US10772183B2Disabling plasma arc torches and related systems and methodsHYPERTHERM INC·Filed 2018·Granted Sep 8, 2020·0 cites·23 claims
- 4944US2008116179A1Method and apparatus for alignment of components of a plasma arc torchHYPERTHERM INC·Filed 2007·Application pending·0 cites
- 5043US10297300B2Method and system for determining temperature using a magnetic junctionSAMSUNG ELECTRONICS CO LTD·Filed 2015·Granted May 21, 2019·0 cites·9 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →