Patents by Inventor Changlin Chen

Changlin Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170219333
    Abstract: The present invention provides the Fabry-Perot (F-P) sensor compromising housing, measuring probe, longitudinal sling block, and displacement converting device. The optic fiber passes through upside sealing ring and extends into upside through hole with the optic fiber end surface disposed at the bottom; the upside of longitudinal sliding block is disposed with reflecting surface, thus a Fabry-Perot cavity is formed between part of the fiber end surface at the bottom of the fiber and the reflecting surface on the upside of longitudinal sliding block. The displacement converting device will convert the lateral slides of the measuring probe into the slides of the longitudinal sliding block, which thus changes the distance from the reflecting surface to the fiber end surface and changes the Fabry-Perot cavity length. Further, the sliding distance of the measuring probe can be calculated after the variation of the Fabry-Perot cavity length measured in according with the Fabry-Perot principle.
    Type: Application
    Filed: November 3, 2016
    Publication date: August 3, 2017
    Inventors: YAN TANG, YIZHENG CHEN, YONG YUAN, QIANG GAO, XIAN LIU, QINGXU YU, CHANGLIN CHEN, ZHENGPING ZHANG, HUA LI, XIUYAN JING, CHUANBAO YI
  • Publication number: 20170219343
    Abstract: The present invention provides a Fabry-Perot sensor for measuring inclination. Wherein the present inclinometer is fixed on a static detected object in application use, the mass block is flexibly connected to the top plate, thus the line between the center of gravity of the mass block and the connecting point on the top plate is perpendicular to the horizontal plane; a Fabry-Perot cavity is formed between the reflecting surface disposed at one end of the mass block and the end of the optic fiber. The detected object will be in a static state after tilting, the line between the center of gravity of the mass block and its connecting point on the top plate is still perpendicular to the level plane and the F-P cavity length will have a variation. Then the change of cavity length can be measured in accordance with the Fabry-Perot principle, thereby the tilting angle of the mass block is able to be further measured. Then the tilting angle is also the inclination of the detected object.
    Type: Application
    Filed: November 3, 2016
    Publication date: August 3, 2017
    Inventors: YAN TANG, YIZHENG CHEN, ZHENGANG LU, GUOXIN ZHANG, ZHIHAO YU, QINGXU YU, QIANG GAO, CHANGLIN CHEN, ZHENGPING ZHANG, DONG SHANG, ZHAOHUI LU
  • Publication number: 20170218406
    Abstract: This document describes biochemical pathways for producing pimeloyl-CoA using a polypeptide having the enzymatic activity of a hydroperoxide lyase to form non-3-enal and 9-oxononanoate from 9-hydroxyperoxyoctadec-10,12-dienoate. Non-3-enal and 9-oxononanoate can be enzymatically converted to pimeloyl-CoA or a salt thereof using one or more polypeptides having the activity of a dehydrogenase, a CoA ligase, an isomerase, a reductase, a thioesterase, a monooxygenase, a hydratase, and/or a thiolase. Pimeloyl-CoA can be enzymatically converted to pimelic acid, 7-aminoheptanoic acid, 7-hydroxyheptanoic acid, heptamethylenediamine, or 1,7-heptanediol, or corresponding salts thereof. This document also describes recombinant microorganisms producing pimeloyl-CoA, as well as pimelic acid, 7-aminoheptanoic acid, 7-hydroxyheptanoic acid, heptamethylenediamine, and 1,7-heptanediol, or corresponding salts thereof.
    Type: Application
    Filed: January 31, 2017
    Publication date: August 3, 2017
    Applicant: INVISTA North America S.a.r.l.
    Inventors: Alexander Van Eck CONRADIE, Adriana L. BOTES, Alec FOSTER, Changlin CHEN
  • Publication number: 20170204420
    Abstract: This document describes biochemical pathways for producing pimelic acid, 7-aminoheptanoic acid, 7-hydroxyheptanoic acid, heptamethylenediamine or 1,7-heptanediol by forming one or two terminal functional groups, each comprised of carboxyl, amine or hydroxyl group, in a C7 aliphatic backbone substrate. These pathways, metabolic engineering and cultivation strategies described herein rely on the C1 elongation enzymes or homolog associated with coenzyme B biosynthesis.
    Type: Application
    Filed: January 13, 2017
    Publication date: July 20, 2017
    Inventors: Adriana Leonora Botes, Alex Van Eck Conradie, Changlin Chen, Paul S. Pearlman
  • Publication number: 20170191096
    Abstract: This document describes biochemical pathways for producing pimelic acid, 7-aminoheptanoic acid, 7-hydroxyheptanoic acid, heptamethylenediamine or 1,7-heptanediol by forming two terminal functional groups, comprised of carboxyl, amine or hydroxyl group, in a C7 aliphatic backbone substrate. These pathways, metabolic engineering and cultivation strategies described herein rely on the carbon chain elongation enzymes or homologs thereof associated with the cyclohexane carboxylate biosynthesis from Syntrophus aciditrophicus or 2-aminoadipate lysine biosynthesis.
    Type: Application
    Filed: March 15, 2017
    Publication date: July 6, 2017
    Inventors: Adriana Leonora Botes, Alex Van Eck Conradie, Changlin Chen, Paul S. Pearlman
  • Patent number: 9663801
    Abstract: Disclosed are methods for producing butadiene from one or more of several diverse feedstocks including bioderived feedstocks, renewable feedstocks, petrochemical feedstocks and natural gas.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: May 30, 2017
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana L. Botes
  • Patent number: 9650653
    Abstract: Embodiments of the present invention relate to methods for the biosynthesis of di- or trifunctional C7 alkanes in the presence of isolated enzymes or in the presence of a recombinant host cell expressing those enzymes. The di- or trifunctional C7 alkanes are useful as intermediates in the production of nylon-7, nylon-7,x, nylon-x,7, and polyesters.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: May 16, 2017
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana L. Botes, Alex Van Eck Conradie, Benjamin D. Herzog
  • Patent number: 9637764
    Abstract: This document describes biochemical pathways for producing pimelic acid, 7-aminoheptanoic acid, 7-hydroxyheptanoic acid, heptamethylenediamine or 1,7-heptanediol by forming two terminal functional groups, comprised of carboxyl, amine or hydroxyl group, in a C7 aliphatic backbone substrate. These pathways, metabolic engineering and cultivation strategies described herein rely on the carbon chain elongation enzymes or homologs thereof associated with the cyclohexane carboxylate biosynthesis from Syntrophus aciditrophicus or 2-aminoadipate lysine biosynthesis.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 2, 2017
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Adriana Leonora Botes, Alex Van Eck Conradie, Changlin Chen, Paul S. Pearlman
  • Patent number: 9617572
    Abstract: This document describes biochemical pathways for producing pimelic acid, 7-aminoheptanoate, 7-hydroxyheptanoate, heptamethylenediamine, or 1,7-heptanediol by forming two terminal functional groups, comprised of carboxyl, amine or hydroxyl group, in a C7 aliphatic backbone substrate produced from chorismate or benzoate. These pathways, metabolic engineering and cultivation strategies described herein rely on the anaerobic benzoyl-CoA degradation pathway enzymes.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: April 11, 2017
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Adriana Leonora Botes, Alex Van Eck Conradie, Changlin Chen, Paul S. Pearlman
  • Patent number: 9580731
    Abstract: This document describes biochemical pathways for producing pimelic acid, 7-aminoheptanoic acid, 7-hydroxyheptanoic acid, heptamethylenediamine or 1,7-heptanediol by forming one or two terminal functional groups, each comprised of carboxyl, amine or hydroxyl group, in a C7 aliphatic backbone substrate. These pathways, metabolic engineering and cultivation strategies described herein rely on the C1 elongation enzymes or homolog associated with coenzyme B biosynthesis.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 28, 2017
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Adriana Leonora Botes, Alex Van Eck Conradie, Changlin Chen, Paul S. Pearlman
  • Publication number: 20160355844
    Abstract: This document describes biochemical pathways for producing butadiene by forming two vinyl groups in a butadiene synthesis substrate. These pathways described herein rely on enzymes such as mevalonate diphosphate decarboxylase, isoprene synthase, and dehydratases for the final enzymatic step.
    Type: Application
    Filed: July 19, 2016
    Publication date: December 8, 2016
    Applicant: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana Leonora Botes, Alex Van Eck Conradie
  • Publication number: 20160355843
    Abstract: This document describes biochemical pathways for producing butadiene by forming two vinyl groups in a butadiene synthesis substrate. These pathways described herein rely on enzymes such as mevalonate diphosphate decarboxylase, isoprene synthase, and dehydratases for the final enzymatic step.
    Type: Application
    Filed: July 15, 2016
    Publication date: December 8, 2016
    Applicant: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana Leonora Botes, Alex Van Eck Conradie
  • Publication number: 20160289656
    Abstract: The invention relates to methods for enriching monomer content in a cycloalkane oxidation process mixed organic waste stream. In particular, the methods involve combining a biocatalyst with a mixed organic waste stream from a cycloalkane oxidation process, and enzymatically converting dimeric and/or oligomeric components of said waste stream into monomeric components. The methods may enrich the content of diacids, adipic acid, and/or other ?,?-difunctional C6 alkanes in the mixed organic waste stream. Additionally, the treated mixed organic waste streams may have improved burning efficiency.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 6, 2016
    Applicant: INVISTA North America S.a.r.l.
    Inventors: Paul S. PEARLMAN, Changlin CHEN, Adriana L. BOTES
  • Patent number: 9422580
    Abstract: This document describes biochemical pathways for producing butadiene by forming two vinyl groups in a butadiene synthesis substrate. These pathways described herein rely on enzymes such as mevalonate diphosphate decarboxylase, isoprene synthase, and dehydratases for the final enzymatic step.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: August 23, 2016
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana Leonara Botes, Alex Van Eck Conradie
  • Patent number: 9422578
    Abstract: This document describes biochemical pathways for producing butadiene by forming two vinyl groups in a butadiene synthesis substrate. These pathways described herein rely on enzymes such as mevalonate diphosphate decarboxylase, isoprene synthase, and dehydratases for the final enzymatic step.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: August 23, 2016
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana L. Botes, Alex Van Eck Conradie
  • Patent number: 9334508
    Abstract: The invention relates to methods for enriching monomer content in a cycloalkane oxidation process mixed organic waste stream. In particular, the methods involve combining a biocatalyst with a mixed organic waste stream from a cycloalkane oxidation process, and enzymatically converting dimeric and/or oligomeric components of said waste stream into monomeric components. The methods may enrich the content of diacids, adipic acid, and/or other ?,?-difunctional C6 alkanes in the mixed organic waste stream. Additionally, the treated mixed organic waste streams may have improved burning efficiency.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: May 10, 2016
    Assignee: INVISTA NORTH AMERICA S.A.R.L.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana L. Botes
  • Publication number: 20150337275
    Abstract: Embodiments of the present invention relate to methods for the biosynthesis of di- or trifunctional C7 alkanes in the presence of isolated enzymes or in the presence of a recombinant host cell expressing those enzymes. The di- or trifunctional C7 alkanes are useful as intermediates in the production of nylon-7, nylon-7,x, nylon-x,7, and polyesters.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 26, 2015
    Applicant: INVISTA TECHNOLOGIES S.a.r.l.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana L. Botes, Alex Van Eck Conradie, Benjamin D. Herzog
  • Publication number: 20150004660
    Abstract: Embodiments of the invention relate to the enzymatic conversion of bioderived feedstocks to commercially valuable chemicals. The enzymatic conversions of the embodiments of the invention offer the potential for lower cost routes to these value-added chemicals. Some of the chemicals that are useful include nylon intermediates such as caprolactam, adipic acid, 1,6-hexamethylene diamine; butanediols such as 1,4-butanediol, 1,3-butanediol, and 2,3-butanediol; butanols such as 1-butanol, and 2-butanol; succinic acid, butadiene, isoprene, and 3-hydroxypropanoic acid.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 1, 2015
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana Leonora Botes
  • Patent number: 8852899
    Abstract: Embodiments of the invention relate to the enzymatic conversion of bioderived feedstocks to commercially valuable chemicals. The enzymatic conversions of the embodiments of the invention offer the potential for lower cost routes to these value-added chemicals. Some of the chemicals that are useful include nylon intermediates such as caprolactam, adipic acid, 1,6-hexamethylene diamine; butanediols such as 1,4-butanediol, 1,3-butanediol, and 2,3-butanediol; butanols such as 1-butanol, and 2-butanol; succinic acid, butadiene, isoprene, and 3-hydroxypropanoic acid.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: October 7, 2014
    Assignee: INVISTA North America S.a.r.l.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana L. Botes
  • Publication number: 20140242655
    Abstract: Embodiments of the present invention relate to methods for the biosynthesis of di- or trifunctional C7 alkanes in the presence of isolated enzymes or in the presence of a recombinant host cell expressing those enzymes. The di- or trifunctional C7 alkanes are useful as intermediates in the production of nylon-7, nylon-7,x, nylon-x,7, and polyesters.
    Type: Application
    Filed: June 29, 2012
    Publication date: August 28, 2014
    Applicant: INVISTA TECHNOLOGIES S.A R.L.
    Inventors: Paul S. Pearlman, Changlin Chen, Adriana Leonora Botes, Alex Van Eck Conradie, Benjamin D. Herzog