Patents by Inventor Vern Witthuhn

Vern Witthuhn 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).

  • Microbial system for formaldehyde sensing and remediation
    Patent number: 5837481
    Abstract: Environmental formaldehyde can be detected and remediated in a biological system that incorporates a bacterial cell containing suitable genetic sequences encoding a formaldehyde-inducible regulatory system. The system includes a transcriptional promoter that can be specifically induced in the presence of formaldehyde to transcribe an operably linked gene.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: November 17, 1998
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Timothy J. Donohue, Robert D. Barber, Vern Witthuhn
  • Microbial system for formaldehyde sensing and remediation
    Patent number: 5834300
    Abstract: Environmental formaldehyde can be detected and remediated in a biological system that incorporates a bacterial cell containing suitable genetic sequences encoding a formaldehyde-inducible regulatory system. The system includes a transcriptional promoter that can be specifically induced in the presence of formaldehyde to transcribe an operably linked gene.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: November 10, 1998
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Timothy J. Donohue, Robert D. Barber, Vern Witthuhn
  • Microbial system for formaldehyde sensing and remediation
    Patent number: 5747328
    Abstract: Environmental formaldehyde can be detected and remediated in a biological system that incorporates a bacterial cell containing suitable genetic sequences encoding a formaldehyde-inducible regulatory system. The system includes a transcriptional promoter that can be specifically induced in the presence of formaldehyde to transcribe an operably linked gene.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: May 5, 1998
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Timothy J. Donohue, Robert D. Barber, Vern Witthuhn