Inventor · disambiguated record
Xiucai Liu
Also filed as: LIU XIUCAI
50 granted patents·15 pending applications·8 citations·filing 2013–2024
96Inventor score
Top patents by PatentIndex Score
65 records- 0189US11999689B2Method and system for extracting long chain dicarboxylic acidCATHAY BIOTECH INC·Filed 2021·Granted Jun 4, 2024·1 cites·14 claims
- 0285US9914694B2Purification of cadaverine using high boiling point solventCATHAY R&D CENTER CO LTD·Filed 2017·Granted Mar 13, 2018·2 cites·15 claims
- 0380US10851394B2Decanedioic acid produced by microbial fermentation process and preparation method thereofCATHAY BIOTECH INC·Filed 2018·Granted Dec 1, 2020·1 cites·16 claims
- 0479US12030848B2Solid-solid separation process for long chain dicarboxylic acidsCATHAY BIOTECH INC·Filed 2022·Granted Jul 9, 2024·0 cites·58 claims
- 0577US12325872B2Method of improving acid decarboxylase activity in vitro under alkaline pHCATHAY BIOTECH INC·Filed 2023·Granted Jun 10, 2025·0 cites·6 claims
- 0676US12018311B2Long chain dibasic acid with low content of long chain dibasic acid impurity of shorter carbon-chain and preparation method thereofCATHAY BIOTECH INC·Filed 2022·Granted Jun 25, 2024·0 cites·15 claims
- 0776US10759737B2Method for extracting 1,5-pentanediamine from solution system containing 1,5-pentanediamine saltCATHAY BIOTECH INC·Filed 2016·Granted Sep 1, 2020·1 cites·13 claims
- 0873US10400257B2Expression of recombinant tetracycline efflux pumps for the production of lysine or lysine-derived products, and methods and applications thereofCATHAY R&D CENTER CO LTD·Filed 2014·Granted Sep 3, 2019·1 cites·16 claims
- 0972US2024052115A1Long-carbon-chain polyamide resin composition and continuous fiber reinforced long-carbon-chain polyamide composite materialCATHAY BIOTECH INC·Filed 2023·Application pending·0 cites
- 1072US2023383095A1Flame-retardant polyamide glass fiber composition and preparation method thereforCATHAY BIOTECH INC·Filed 2023·Application pending·0 cites
- 1171US11427525B2Solid-solid separation process for long chain dicarboxylic acidsCATHAY BIOTECH INC·Filed 2020·Granted Aug 30, 2022·0 cites·27 claims
- 1270US9234203B2Stabilized recombinant expression plasmid vector in hafnia alvei and applications thereofCATHAY IND BIOTECH LTD·Filed 2013·Granted Jan 12, 2016·2 cites·19 claims
- 1370US2024336735A1Polyamide 56 resin and fiber, preparation methods therefor, and use thereofCATHAY BIOTECH INC·Filed 2024·Application pending·0 cites
- 1469US11753629B2Directed evolution of CYP52A12 gene and its use in dicarboxylic acid productionCATHAY BIOTECH INC·Filed 2021·Granted Sep 12, 2023·0 cites·12 claims
- 1569US11434510B2Long chain dibasic acid with low content of long chain dibasic acid impurity of shorter carbon-chain and preparation method thereofCATHAY BIOTECH INC·Filed 2019·Granted Sep 6, 2022·0 cites·3 claims
- 1669US2024254522A1A long chain dibasic acid with low content of long chain dibasic acid impurity of shorter carbon-chain and preparation method thereofCATHAY BIOTECH INC·Filed 2024·Application pending·0 cites
- 1768US11091742B2Directed evolution of CYP52A12 gene and its use in dicarboxylic acid productionCATHAY BIOTECH INC·Filed 2018·Granted Aug 17, 2021·0 cites·2 claims
- 1866US11802298B2Decanedioic acid produced by microbial fermentation process and preparation method thereofCATHAY BIOTECH INC·Filed 2020·Granted Oct 31, 2023·0 cites·19 claims
- 1966US11261217B2Expression of Klebsiella oxytoca polypeptides involved in lysine decarboxylation, and methods and applications thereofCATHAY BIOTECH INC·Filed 2020·Granted Mar 1, 2022·0 cites·1 claims
- 2066US11225677B2Long-chain dibasic acid with low content of monobasic acid impurity and the production method thereofCATHAY BIOTECH INC·Filed 2019·Granted Jan 18, 2022·0 cites·9 claims
- 2165US12441839B2Method for producing high temperature-resistant polyamide, high temperature-resistant polyamide and use thereofCATHAY BIOTECH INC·Filed 2021·Granted Oct 14, 2025·0 cites·18 claims
- 2264US2024174806A1High temperature resistant semi-aromatic polyamide resin, preparation method, composition and article thereofCATHAY BIOTECH INC·Filed 2024·Application pending·0 cites
- 2363US10982241B2Long-chain dibasic acid with low content of monobasic acid impurity and the production method thereofCATHAY BIOTECH INC·Filed 2020·Granted Apr 20, 2021·0 cites·18 claims
- 2463US10487176B2Nylon salt and preparation method thereforCATHAY BIOTECH INC·Filed 2014·Granted Nov 26, 2019·0 cites·8 claims
- 2563US2024150523A1High temperature resistant semi-aromatic copolyimide, preparation method, compositions, and molded productCATHAY BIOTECH INC·Filed 2024·Application pending·0 cites
- 2663US2024209149A1Bio-based polyamide elastomer and preparation method thereforCATHAY BIOTECH INC·Filed 2024·Application pending·0 cites
- 2762US11098329B2Expression of recombinant tetracycline efflux pumps for the production of lysine or lysine-derived products, and methods and applications thereofCATHAY BIOTECH INC·Filed 2019·Granted Aug 24, 2021·0 cites·11 claims
- 2862US11008279B2Method for purifying 1,5-pentanediamine and the 1,5-pentanediamine prepared therebyCIBTAMERICA INC·Filed 2019·Granted May 18, 2021·0 cites·10 claims
- 2962US10807937B2Solid-solid separation process for long chain dicarboxylic acidsCATHAY BIOTECH INC·Filed 2016·Granted Oct 20, 2020·0 cites·22 claims
- 3060US12359351B2Polyamide 5X staple fiberCATHAY BIOTECH INC·Filed 2020·Granted Jul 15, 2025·0 cites·10 claims
- 3160US12017182B2Method and system for refining long chain dicarboxylic acidCATHAY BIOTECH INC·Filed 2021·Granted Jun 25, 2024·0 cites·31 claims
- 3260US11136596B2Long-chain dibasic acid with low content of hydroxyl acid impurity and production method thereofCATHAY BIOTECH INC·Filed 2019·Granted Oct 5, 2021·0 cites·7 claims
- 3359US10538481B2Method for purifying 1,5-pentanediamine and 1,5-pentanediamineCATHAY BIOTECH INC·Filed 2014·Granted Jan 21, 2020·0 cites·5 claims
- 3459US2025002650A1Polyamide resin, composition, and use thereof in engineering plasticsCATHAY BIOTECH INC·Filed 2022·Application pending·0 cites
- 3558US11155512B2Method and system for refining long chain dicarboxylic acidCATHAY BIOTECH INC·Filed 2020·Granted Oct 26, 2021·0 cites·11 claims
- 3657US11806670B2Method and system for extracting long chain dicarboxylic acidCATHAY BIOTECH INC·Filed 2021·Granted Nov 7, 2023·0 cites·17 claims
- 3756US11229881B2Method and system for extracting long chain dicarboxylic acidCATHAY BIOTECH INC·Filed 2020·Granted Jan 25, 2022·0 cites·10 claims
- 3854US12497486B2Polyamide 5X fiber, preparation method thereof, and use thereofCATHAY BIOTECH INC·Filed 2020·Granted Dec 16, 2025·0 cites·7 claims
- 3954US11319561B2Method for producing a long chain dicarboxylic acid by fermentation, fermentation broth, treated fermentation broth and wastewaterCATHAY BIOTECH INC·Filed 2018·Granted May 3, 2022·0 cites·20 claims
- 4054US10584149B2Expression of Klebsiella oxytoca polypeptides involved in lysine decarboxylation, and methods and applications thereofCATHAY R&D CENTER CO LTD·Filed 2015·Granted Mar 10, 2020·0 cites·3 claims
- 4153US12331282B2Strain for producing long-chain dicarboxylic acids and fermentation method thereforCATHAY BIOTECH INC·Filed 2020·Granted Jun 17, 2025·0 cites·12 claims
- 4253US10221407B2Stabilized recombinant expression plasmid vector in hafnia alvei and applications thereofCATHAY IND BIOTECH LTD·Filed 2016·Granted Mar 5, 2019·0 cites·14 claims
- 4353US2024270906A1Polyamide resin and preparation method therefor, composition, and fiber productCATHAY BIOTECH INC·Filed 2022·Application pending·0 cites
- 4452US10464880B2Purification of cadaverine using high boiling point solventCATHAY R&D CENTER CO LTD·Filed 2018·Granted Nov 5, 2019·0 cites·14 claims
- 4552US2022389620A1Polyamide 5x industrial yarn, preparation method therefor and use thereofCATHAY BIOTECH INC·Filed 2020·Application pending·0 cites
- 4651US11781163B2Reducing the accumulation of imines/enamines for the production of amino acids or amino acid-derived productsCATHAY BIOTECH INC·Filed 2017·Granted Oct 10, 2023·0 cites·14 claims
- 4751US2020010862A1Long-chain dibasic acid with low content of fatty acid impurity and a method of producing the sameCATHAY BIOTECH INC·Filed 2019·Application pending·0 cites
- 4850US11155840B2Heterologous expression of thermophilic lysine decarboxylase and uses thereofCATHAY BIOTECH INC·Filed 2017·Granted Oct 26, 2021·0 cites·8 claims
- 4949US9896409B2Purification of cadaverine using high boiling point solventCATHAY R&D CENTER CO LTD·Filed 2017·Granted Feb 20, 2018·0 cites·10 claims
- 5049US2019330613A1Control of protein to protein interactions of acid decarboxylaseCATHAY R&D CENTER CO LTD·Filed 2016·Application pending·0 cites
Showing the top 50 of 65 patent records by PatentIndex Score.
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