Patents by Inventor Michael Dennis Zenner

Michael Dennis Zenner 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).

  • Patent number: 10550210
    Abstract: The present invention is directed to polyisocyanates and polyurethanes derived therefrom. In various embodiments, the present invention provides polyisocyanates, methods of making the polyisocyanates from fused bicyclic alcohols, polyurethanes, and methods of making the polyurethanes from the polyisocyanates.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: February 4, 2020
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Patent number: 10392471
    Abstract: Various embodiments disclosed relate to polymers and methods of making the same. In various embodiments, the present invention provides a method of forming a polymer including subjecting a composition including a carboxylic acid having the structure (Rf—O)z1—Ra to conditions sufficient to form a polymer having the structure Reg—[O—Ra(O—Rb)z1-2—O—C(O)—R?(O—Rd)z2-1—C(O)]n—O—Ra(O—Rb)z1-2—O—Reg or a salt or ester thereof, wherein Ra, R? Rb, Rd, Rf, Reg, z1, z2, and n are as defined herein. In various embodiments, the polymer is a tackifier, a viscosifier, or a combination thereof.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 27, 2019
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Jason Shih-Hao Chen, Michael Dennis Zenner
  • Patent number: 10280241
    Abstract: The present invention relates to tackifier compounds and methods of using the same. In various embodiments, the present invention provides a tackifier compound including independently substituted or unsubstituted fused rings A and B each independently chosen from (C5-C10)cycloalkyl and (C2-C10)heterocyclyl. Fused ring A is substituted with (R1)1-8 and fused ring B is substituted with —(OC(O)R?C(O)R2)1-8. At each occurrence R? is independently chosen from (C2-C10)alkanylene, (C2-C10)alkenylene, (C2-C10)alkynylene, C5-C20(arylene), and (C1-C20)heteroarylene, wherein R? is unsubstituted or substituted. At each occurrence R1 is independently selected from —OH, —OR3, and —OC(O)R?C(O)R2. At each occurrence R2 is independently chosen from —OH, —OR3, —NH2, —NHR3, and —NR32. At each occurrence R3 is independently chosen from (C1-C10)alkanyl, (C2-C10)alkenyl, (C2-C10)alkynyl, C5-C20(aryl), and (C1-C20)heteroaryl, wherein R3 is unsubstituted or substituted.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: May 7, 2019
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Publication number: 20180298023
    Abstract: The present invention is directed to polyisocyanates and polyurethanes derived therefrom. In various embodiments, the present invention provides polyisocyanates, methods of making the polyisocyanates from fused bicyclic alcohols, polyurethanes, and methods of making the polyurethanes from the polyisocyanates.
    Type: Application
    Filed: June 26, 2018
    Publication date: October 18, 2018
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Patent number: 10081638
    Abstract: The present invention is directed to polyisocyanates and polyurethanes derived therefrom. In various embodiments, the present invention provides polyisocyanates, methods of making the polyisocyanates from fused bicyclic alcohols, polyurethanes, and methods of making the polyurethanes from the polyisocyanates.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: September 25, 2018
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Publication number: 20180148524
    Abstract: The present invention relates to tackifier compounds and methods of using the same. In various embodiments, the present invention provides a tackifier compound including independently substituted or unsubstituted fused rings A and B each independently chosen from (C5-C10)cycloalkyl and (C2-C10)heterocyclyl. Fused ring A is substituted with (R1)1-8 and fused ring B is substituted with —(OC(O)R?C(O)R2)1-8. At each occurrence R? is independently chosen from (C2-C10)alkanylene, (C2-C10)alkenylene, (C2-C10)alkynylene, C5-C20(arylene), and (C1-C20)heteroarylene, wherein R? is unsubstituted or substituted. At each occurrence R1 is independently selected from —OH, —OR3, and —OC(O)R?C(O)R2. At each occurrence R2 is independently chosen from —OH, —OR3, —NH2, —NHR3, and —NR32. At each occurrence R3 is independently chosen from (C1-C10)alkanyl, (C2-C10)alkenyl, (C2-C10)alkynyl, C5-C20(aryl), and (C1-C20)heteroaryl, wherein R3 is unsubstituted or substituted.
    Type: Application
    Filed: January 26, 2018
    Publication date: May 31, 2018
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Patent number: 9920145
    Abstract: The present invention relates to tackifier compounds and methods of using the same. In various embodiments, the present invention provides a tackifier compound including independently substituted or unsubstituted fused rings A and B each independently chosen from (C5-C10)cycloalkyl and (C2-C10)heterocyclyl. Fused ring A is substituted with (R1)1-8 and fused ring B is substituted with —(OC(O)R?C(O)R2)1-8. At each occurrence R? is independently chosen from (C2-C10)alkanylene, (C2-C10)alkenylene, (C2-C10)alkynylene, C5-C20(arylene), and (C1-C20)heteroarylene, wherein R? is unsubstituted or substituted. At each occurrence R1 is independently selected from —OH, —OR3, and —OC(O)R?C(O)R2. At each occurrence R2 is independently chosen from —OH, —OR3, —NH2, —NHR3, and —NR32. At each occurrence R3 is independently chosen from (C1-C10)alkanyl, (C2-C10)alkenyl, (C2-C10)alkynyl, C5-C20(aryl), and (C1-C20)heteroaryl, wherein R3 is unsubstituted or substituted.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: March 20, 2018
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Publication number: 20170226243
    Abstract: The present invention relates to tackifier compounds and methods of using the same. In various embodiments, the present invention provides a tackifier compound including independently substituted or unsubstituted fused rings A and B each independently chosen from (C5-C10)cycloalkyl and (C2-C10)heterocyclyl. Fused ring A is substituted with (R1)1-8 and fused ring B is substituted with —(OC(O)R?C(O)R2)1-8. At each occurrence R? is independently chosen from (C2-C10)alkanylene, (C2-C10)alkenylene, (C2-C10)alkynylene, (C5-C20(arylene), and (C1-C20)heteroarylene, wherein R? is unsubstituted or substituted. At each occurrence R? is independently selected from —OH, —OR3, and —OC(O)R?C(O)R2. At each occurrence R2 is independently chosen from —OH, —OR3, —NH2, —NHR3, and —NR32. At each occurrence R3 is independently chosen from (C1-C10)alkanyl, (C2-C10)alkenyl, (C2-C10)alkynyl, C5-C20(aryl), and (C1-C20)heteroaryl, wherein R3 is unsubstituted or substituted.
    Type: Application
    Filed: April 28, 2017
    Publication date: August 10, 2017
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Patent number: 9688794
    Abstract: The present invention relates to tackifier compounds and methods of using the same. In various embodiments, the present invention provides a tackifier compound including independently substituted or unsubstituted fused rings A and B each independently chosen from (C5-C10)cycloalkyl and (C2-C10)heterocyclyl. Fused ring A is substituted with (R1)1-8 and fused ring B is substituted with —(OC(O)R?C(O)R2)1-8. At each occurrence R? is independently chosen from (C2-C10)alkanylene, (C2-C10)alkenylene, (C2-C10)alkynylene, C5-C20(arylene), and (C1-C20)heteroarylene, wherein R? is unsubstituted or substituted. At each occurrence R1 is independently selected from —OH, —OR3, and —OC(O)R?C(O)R2. At each occurrence R2 is independently chosen from —OH, —OR3, —NH2, —NHR3, and —NR32. At each occurrence R3 is independently chosen from (C1-C10)alkanyl, (C2-C10)alkenyl, (C2-C10)alkynyl, C5-C20(aryl), and (C1-C20)heteroaryl, wherein R3 is unsubstituted or substituted.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: June 27, 2017
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Publication number: 20170044178
    Abstract: The present invention is directed to polyisocyanates and polyurethanes derived therefrom. In various embodiments, the present invention provides polyisocyanates, methods of making the polyisocyanates from fused bicyclic alcohols, polyurethanes, and methods of making the polyurethanes from the polyisocyanates.
    Type: Application
    Filed: October 27, 2016
    Publication date: February 16, 2017
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Patent number: 9556293
    Abstract: The present invention is directed to polyisocyanates and polyurethanes derived therefrom. In various embodiments, the present invention provides polyisocyanates, methods of making the polyisocyanates from fused bicyclic alcohols, polyurethanes, and methods of making the polyurethanes from the polyisocyanates.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: January 31, 2017
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Publication number: 20160333143
    Abstract: Various embodiments disclosed relate to polymers and methods of making the same. In various embodiments, the present invention provides a method of forming a polymer including subjecting a composition including a carboxylic acid having the structure (Rf—O)z1—Ra to conditions sufficient to form a polymer having the structure Reg—[O—Ra(O—Rb)z1-2—O—C(O)—R?(O—Rd)z2-1—C(O)]n—O—Ra(O—Rb)z1-2—O—Reg or a salt or ester thereof, wherein Ra, R? Rb, Rd, Rf, Reg, z1, z2, and n are as defined herein. In various embodiments, the polymer is a tackifier, a viscosifier, or a combination thereof.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Inventors: Jason Shih-Hao Chen, Michael Dennis Zenner
  • Publication number: 20150274861
    Abstract: The present invention relates to tackifier compounds and methods of using the same. In various embodiments, the present invention provides a tackifier compound including independently substituted or unsubstituted fused rings A and B each independently chosen from (C5-C10)cycloalkyl and (C2-C10)heterocyclyl. Fused ring A is substituted with (R1)1-8 and fused ring B is substituted with —(OC(O)R?C(O)R2)1-8. At each occurrence R? is independently chosen from (C2-C10)alkanylene, (C2-C10)alkenylene, (C2-C10)alkynylene, C5-C20(arylene), and (C1-C20)heteroarylene, wherein R? is unsubstituted or substituted. At each occurrence R1 is independently selected from —OH, —OR3, and —OC(O)R?C(O)R2. At each occurrence R2 is independently chosen from —OH, —OR3, —NH2, —NHR3, and —NR32. At each occurrence R3 is independently chosen from (C1-C10)alkanyl, (C2-C10)alkenyl, (C2-C10)alkynyl, C5-C20(aryl), and (C1-C20)heteroaryl, wherein R3 is unsubstituted or substituted.
    Type: Application
    Filed: October 15, 2013
    Publication date: October 1, 2015
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner
  • Publication number: 20150274880
    Abstract: The present invention is directed to polyisocyanates and polyurethanes derived therefrom. In various embodiments, the present invention provides polyisocyanates, methods of making the polyisocyanates from fused bicyclic alcohols, polyurethanes, and methods of making the polyurethanes from the polyisocyanates.
    Type: Application
    Filed: October 15, 2013
    Publication date: October 1, 2015
    Inventors: Jason Shih-Hao Chen, Michael Richard Kessler, Michael Dennis Zenner