Inventor · disambiguated record
Pingkai Ouyang
Also filed as: OUYANG PINGKAI
21 granted patents·4 pending applications·11 citations·filing 2001–2021
89Inventor score
Files withNANJING UNIVERSITY OF TECHNOLOGY15LI ZHENJIANG3NANJING TECH UNIV (CN)3HE BINGFANG2HUNAN UNIV OF SCI & ENG1
Top patents by PatentIndex Score
25 records- 0188US9029497B2Method of making polylactic acid using carbene derivatives as the catalystLI ZHENJIANG·Filed 2011·Granted May 12, 2015·7 cites·16 claims
- 0277US10259771B2Vegetable oil polyol and the preparation method and the application thereofNANJING UNIVERSITY OF TECHNOLOGY·Filed 2016·Granted Apr 16, 2019·1 cites·8 claims
- 0370US11814516B2Application of lignin in preparing radial tireNANJING UNIVERSITY OF TECHNOLOGY·Filed 2021·Granted Nov 14, 2023·0 cites·10 claims
- 0464US9040653B2Ring-opening polymerization of cyclic compounds catalyzed by carbene derivativesLI ZHENJIANG·Filed 2011·Granted May 26, 2015·1 cites·15 claims
- 0561US11118171B2Recombinant corynebacterium glutamicum for producing lysine by biofilm continuous fermentation and construction method thereofNANJING UNIVERSITY OF TECHNOLOGY·Filed 2020·Granted Sep 14, 2021·0 cites·17 claims
- 0659US11098331B2Method for producing lysine by utilizing adsorption and immobilized fermentation of recombinant corynebacterium glutamicumNANJING UNIVERSITY OF TECHNOLOGY·Filed 2020·Granted Aug 24, 2021·0 cites·8 claims
- 0758US11214584B2Polyols for preparing flexible polyurethane foam, and preparation method and application thereofNANJING UNIVERSITY OF TECHNOLOGY·Filed 2020·Granted Jan 4, 2022·0 cites·8 claims
- 0858US2023135725A1Modified lignin reinforced rubber and preparation method thereforNANJING UNIVERSITY OF TECHNOLOGY·Filed 2021·Application pending·0 cites
- 0957US11920017B2Preparation method of polyurethane foamNANJING UNIVERSITY OF TECHNOLOGY·Filed 2021·Granted Mar 5, 2024·0 cites·7 claims
- 1057US11912814B2Preparation method of flexible polyurethane foamNANJING UNIVERSITY OF TECHNOLOGY·Filed 2021·Granted Feb 27, 2024·0 cites·8 claims
- 1151US11535708B2Preparation method for polyol and application of polyol in making polyurethaneNANJING UNIVERSITY OF TECHNOLOGY·Filed 2020·Granted Dec 27, 2022·0 cites·5 claims
- 1248US9833539B2E-polylysine hydrogel and preparation method and application thereofNANJING TECH UNIV (CN)·Filed 2013·Granted Dec 5, 2017·0 cites·18 claims
- 1348US2019119496A1Totally bio-based vegetable oil polyol and preparation method and use thereofNANJING UNIVERSITY OF TECHNOLOGY·Filed 2018·Application pending·0 cites
- 1446US9546143B2Method for preparing high-quality epoxidized fatty acid ester with micro-reaction deviceNANJING TECH UNIV (CN)·Filed 2016·Granted Jan 17, 2017·0 cites·9 claims
- 1546US8993810B2Preparation method of lycopene intermediate 3-methyl-4,4-dialkoxy-1-butaldehydeNANJING UNIVERSITY OF TECHNOLOGY·Filed 2012·Granted Mar 31, 2015·0 cites·7 claims
- 1645US11319339B2Multi-channel peptide synthesizer and operating method thereofHUNAN UNIV OF SCI & ENG·Filed 2019·Granted May 3, 2022·0 cites·12 claims
- 1745US2019112475A1Polyurethane Polyol, and Preparation Method and Application ThereofNANJING UNIVERSITY OF TECHNOLOGY·Filed 2018·Application pending·0 cites
- 1844US9624176B2Method for preparing caprolactam by using a microreactor under lewis acid catalysisNANJING TECH UNIV (CN)·Filed 2016·Granted Apr 18, 2017·0 cites·9 claims
- 1944US2019119493A1Vegetable Oil Polyol for Flexible Polyurethane Foam and Preparation Method and Application ThereofNANJING UNIVERSITY OF TECHNOLOGY·Filed 2018·Application pending·0 cites
- 2043US7022639B2Catalytic activity accelerant used in petroleum hydrogenationNANJING UNIVERSITY OF TECHNOLOGY·Filed 2001·Granted Apr 4, 2006·2 cites·22 claims
- 2141US9765098B2Preparation method of 3,7,11-trimethyldodec-2,4,6,10-tetraene-1-yl-phosphonic saltNANJING UNIV OF TECH·Filed 2012·Granted Sep 19, 2017·0 cites·14 claims
- 2240US9187394B2Method for synthesizing 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehydeNANJING UNIVERSITY OF TECHNOLOGY·Filed 2012·Granted Nov 17, 2015·0 cites·4 claims
- 2340US8241545B2Method of making polylactic acid and its productsLI ZHENJIANG·Filed 2011·Granted Aug 14, 2012·0 cites·20 claims
- 2437US8598128B2Fructosylated puerarin, and preparation method and use thereofHE BINGFANG·Filed 2011·Granted Dec 3, 2013·0 cites·19 claims
- 2533US8946407B2Fructosylated mangiferin and preparation method therefor and use thereofHE BINGFANG·Filed 2012·Granted Feb 3, 2015·0 cites·14 claims
Join the waitlist — get patent alerts
Get an alert when Pingkai Ouyang files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →