Patents by Inventor Clifford Unkefer

Clifford Unkefer 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: 20070191635
    Abstract: The present invention is directed to labeled compounds of the formulae wherein Q is selected from the group consisting of —S—, —S(?O)—, and —S(?O)2—, Z is selected from the group consisting of 1-naphthyl, substituted 1-naphthyl, 2-naphthyl, substituted 2-naphthyl, and phenyl groups with the structure wherein R1, R2, R3, R4 and R5 are each independently selected from the group consisting of hydrogen, a C1-C4 lower alkyl, a halogen, and an amino group selected from the group consisting of NH2, NHR and NRR? where R and R? are each independently selected from the group consisting of a C1-C4 lower alkyl, an aryl, and an alkoxy group, and X is selected from the group consisting of hydrogen, a C1-C4 lower alkyl group, and a fully-deuterated C1-C4 lower alkyl group. The present invention is also directed to a process of preparing labeled compounds, e.g.
    Type: Application
    Filed: November 2, 2006
    Publication date: August 16, 2007
    Inventors: Marc Alvarez, Rodolfo Martinez, Clifford Unkefer
  • Publication number: 20070141724
    Abstract: The present invention is directed to a method of forming an immobilized chemical moiety, such as a trifunctional chemical moiety that includes membrane-anchoring functionalities, on a solid support for use in automated chemical synthesis of a recognition molecule. The invention is further directed to a method of easily and efficiently synthesizing chemical moieties such as those used for biosensor applications. The invention is further directed to a composition, i.e., a solid support having a trifunctional chemical moiety linked thereto, that can be readily and easily used to generate biological molecules for applications, such as biosensor applications.
    Type: Application
    Filed: October 30, 2006
    Publication date: June 21, 2007
    Inventors: Jurgen Schmidt, Basil Swanson, Clifford Unkefer
  • Publication number: 20070106085
    Abstract: The present invention is directed to labeled compounds of the formulae wherein Q is selected from the group consisting of —S—, —S(?O)—, and —S(?O)2—, Z is selected from the group consisting of 1-naphthyl, substituted 1-naphthyl, 2-naphthyl, substituted 2-naphthyl, and phenyl groups with the structure wherein R1, R2, R3, R4 and R5 are each independently selected from the group consisting of hydrogen, a C1-C4 lower alkyl, a halogen, and an amino group selected from the group consisting of NH2, NHR and NRR? where R and R? are each independently selected from the group consisting of a C1-C4 lower alkyl, an aryl, and an alkoxy group, and X is selected from the group consisting of hydrogen, a C1-C4 lower alkyl group, and a fully-deuterated C1-C4 lower alkyl group. The present invention is also directed to a process of preparing labeled compounds, e.g.
    Type: Application
    Filed: November 4, 2005
    Publication date: May 10, 2007
    Inventors: Marc Alvarez, Rodolfo Martinez, Clifford Unkefer
  • Publication number: 20060178534
    Abstract: The present invention is directed to labeled compounds, of the formulae wherein C* is each independently selected from the group consisting of 13C and 12C with the proviso that at least one C* is 13C, each hydrogen of the methylene group can independently be either hydrogen or deuterium, the methyl group includes either zero or three deuterium atoms, Q is from the group of sulfide, sulfinyl, and sulfone, Z is an aryl group from the group of 1-naphthyl, substituted 1-naphthyl, 2-naphthyl, substituted 2-naphthyl, and phenyl groups with the structure wherein R1, R2, R3, R4 and R5 are each independently from the group of hydrogen, a C1-C4 lower alkyl, a halogen, and an amino group from the group of NH2, NHR and NRR? where R and R? are each independently from the group of a C1-C4 lower alkyl, a phenyl, and an alkoxy group, and the methyl group can include either zero or three deuterium atoms.
    Type: Application
    Filed: February 7, 2005
    Publication date: August 10, 2006
    Inventors: Rodolfo Martinez, Clifford Unkefer, Marc Alvarez
  • Patent number: 7018792
    Abstract: A sensor for the detection of tetrameric multivalent neuraminidase within a sample is disclosed, where a positive detection indicates the presence of a target virus within the sample. Also disclosed is a trifunctional composition of matter including a trifunctional linker moiety with groups bonded thereto including (a) an alkyl chain adapted for attachment to a substrate, (b) a fluorescent moiety capable of generating a fluorescent signal, and (c) a recognition moiety having a spacer group of a defined length thereon, the recognition moiety capable of binding with tetrameric multivalent neuraminidase.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: March 28, 2006
    Assignee: The Regents of the University of California
    Inventors: Basil I. Swanson, Xuedong Song, Clifford Unkefer, Louis A. Silks, III, Jurgen G. Schmidt
  • Publication number: 20060003318
    Abstract: A sensor for the detection of tetrameric multivalent neuraminidase within a sample is disclosed, where a positive detection indicates the presence of a target virus within the sample. Also disclosed is a trifunctional composition of matter including a trifunctional linker moiety with groups bonded thereto including (a) an alkyl chain adapted for attachment to a substrate, (b) a fluorescent moiety capable of generating a fluorescent signal, and (c) a recognition moiety having a spacer group of a defined length thereon, the recognition moiety capable of binding with tetrameric multivalent neuraminidase.
    Type: Application
    Filed: May 17, 2005
    Publication date: January 5, 2006
    Inventors: Basil Swanson, Xuedong Song, Clifford Unkefer, Louis Silks, Jurgen Schmidt
  • Patent number: 6893814
    Abstract: A sensor for the detection of tetrameric multivalent neuraminidase within a sample is disclosed, where a positive detection indicates the presence of a target virus within the sample. Also disclosed is a trifunctional composition of matter including a trifunctional linker moiety with groups bonded thereto including (a) an alkyl chain adapted for attachment to a substrate, (b) a fluorescent moiety capable of generating a fluorescent signal, and (c) a recognition moiety having a spacer group of a defined length thereon, the recognition moiety capable of binding with tetrameric multivalent neuraminidase.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: May 17, 2005
    Assignee: The Regents of the University of California
    Inventors: Basil I. Swanson, Xuedong Song, Clifford Unkefer, Louis A. Silks, III, Jurgen G. Schmidt
  • Publication number: 20050027100
    Abstract: The present invention is directed to a method of forming an immobilized chemical moiety, such as a trifunctional chemical moiety that includes membrane-anchoring functionalities, on a solid support for use in automated chemical synthesis of a recognition molecule. The invention is further directed to a method of easily and efficiently synthesizing chemical moieties such as those used for biosensor applications. The invention is further directed to a composition, i.e., a solid support having a trifunctional chemical moiety linked thereto, that can be readily and easily used to generate biological molecules for applications, such as biosensor applications.
    Type: Application
    Filed: July 29, 2003
    Publication date: February 3, 2005
    Inventors: Jurgen Schmidt, Basil Swanson, Clifford Unkefer
  • Publication number: 20050027146
    Abstract: The present invention is directed to asymmetric chiral labeled glycerols including at least one chiral atom, from one to two 13C atoms and from zero to four deuterium atoms bonded directly to a carbon atom, e.g., (2S)[1,2-13C2]glycerol and (2R)[1,2-13C2]glycerol, and to the use of such chiral glycerols in the preparation of labeled amino acids.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 3, 2005
    Inventors: Rodolfo Martinez, Clifford Unkefer, Marc Alvarez
  • Publication number: 20040058315
    Abstract: A sensor for the detection of tetrameric multivalent neuraminidase within a sample is disclosed, where a positive detection indicates the presence of a target virus within the sample. Also disclosed is a trifunctional composition of matter including a trifunctional linker moiety with groups bonded thereto including (a) an alkyl chain adapted for attachment to a substrate, (b) a fluorescent moiety capable of generating a fluorescent signal, and (c) a recognition moiety having a spacer group of a defined length thereon, the recognition moiety capable of binding with tetrameric multivalent neuraminidase.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 25, 2004
    Inventors: Basil I. Swansor, Xuedong Song, Clifford Unkefer, Louis A. Silks, Jurgen G. Schmidt
  • Patent number: 6627396
    Abstract: A sensor for the detection of tetrameric multivalent neuraminidase within a sample is disclosed, where a positive detection indicates the presence of a target virus within the sample. Also disclosed is a trifunctional composition of matter including a trifunctional linker moiety with groups bonded thereto including (a) an alkyl chain adapted for attachment to a substrate, (b) a fluorescent moiety capable of generating a fluorescent signal, and (c) a recognition moiety having a spacer group of a defined length thereon, the recognition moiety capable of binding with tetrameric multivalent neuraminidase.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: September 30, 2003
    Assignee: The Regents of the University of California
    Inventors: Basil I. Swanson, Xuedong Song, Clifford Unkefer, Louis A. Silks, III, Jurgen G. Schmidt
  • Patent number: D347765
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: June 14, 1994
    Inventor: Clifford Unkefer