Inventor · disambiguated record
Changqing Du
Also filed as: DU CHANGQING
10 granted patents·1 pending application·20 citations·filing 2011–2022
82Inventor score
Top patents by PatentIndex Score
11 records- 0192US10786842B2Draw-in control for sheet drawingZHOU DAJUN·Filed 2018·Granted Sep 29, 2020·4 cites·13 claims
- 0288US9914164B1Machine pressSIEKIRK III JOHN F·Filed 2016·Granted Mar 13, 2018·7 cites·12 claims
- 0380US9149854B2Stamping apparatusZHOU DAJUN·Filed 2011·Granted Oct 6, 2015·4 cites·20 claims
- 0478US9120137B2Stamping apparatus and method of useZHOU DAJUN·Filed 2012·Granted Sep 1, 2015·4 cites·16 claims
- 0572US9827606B2Stamping apparatus having flared beadZHOU DAJUN·Filed 2015·Granted Nov 28, 2017·1 cites·16 claims
- 0662US11285523B2Metal forming method including post-forming stretching to control springbackZHOU DAJUN·Filed 2019·Granted Mar 29, 2022·0 cites·14 claims
- 0757US10668516B2Post-compression for springback reductionZHOU DAJUN·Filed 2016·Granted Jun 2, 2020·0 cites·8 claims
- 0855US10328504B2Two-stage method of cutting ultra-high strength material sheetZHOU DAJUN·Filed 2016·Granted Jun 25, 2019·0 cites·7 claims
- 0953US10933458B2Stretch forming dieZHOU DAJUN·Filed 2018·Granted Mar 2, 2021·0 cites·16 claims
- 1040US12511448B2Power transmission and transformation project acceptance method based on building information modeling (BIM) and point cloud measurementSTATE GRID JIANGSU ELECTRIC POWER ENG CONSULTING CO LTD·Filed 2022·Granted Dec 30, 2025·0 cites·6 claims
- 1137US2018021832A1Method of incremental cold forming an angled corner in a continuous sheet of advanced high strength metalZHOU DAJUN·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →