Patents by Inventor James C Powers

James C Powers 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: 20140134018
    Abstract: The systems and compressors for use with flammable refrigerants can include features that can reduce or address the generation of sparks or arcs internal or external to the compressor that could ignite the flammable refrigerant. The systems and compressors can also include features that can reduce or address leakage into or out of the hermetic compressor shell which could create a flammable atmosphere that could be ignited if the flammable atmosphere came into contact with an ignition source.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 15, 2014
    Inventors: John W. TOLBERT, JR., Scott G. HIX, Larry G. PIPPIN, Michael KAUL, James C. POWERS
  • Patent number: 8518885
    Abstract: A novel class of peptide ?-ketoamides useful for selectively inhibiting calpains, selectively inhibiting cysteine proteases, and generally inhibiting all cysteine proteases, having the formula M-AA2-AA1-CO—NH—(CH2)n—R3. Processes for the synthesis of peptidyl ?-ketoamide derivatives. Compositions and methods for inhibiting cysteine proteases, inhibiting calpains, and treating disease caused by cysteine proteases and calpains are provided.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: August 27, 2013
    Assignees: Georgia Tech Research Corporation, Emory University
    Inventors: James C. Powers, Jonathan D. Glass, Asli Ovat, Zhaozhao Li
  • Patent number: 8033053
    Abstract: A security barrier apparatus which may be used in conjunction with an existing security gate or may be used as a stand-alone security barrier gate. The system uses a passive restraining device comprising a bollard having at least one catch horn extending therefrom which engages a corresponding structure on the gate to restrain the gate when impacted.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: October 11, 2011
    Assignee: Performance Development Corporation
    Inventors: Joe W. Anderson, Victor J. Kaminsky, Thomas A. Lancaster, III, Douglas J. Hornstra, Michael W. Light, James C. Powers, Richard W. Schenk
  • Patent number: 8013014
    Abstract: Methods for treatment and/or prevention of nerve degeneration in mammals using aza-peptide epoxide caspase inhibitors are provided. Aspects of the present disclosure include aza-peptide epoxide compositions to treat or prevent diseases, for example stroke, Alzheimer's disease, Parkinson's disease, multiple sclerosis, neuropathies, Huntington's disease, dentatorubropallidoluysian atrophy, spinocerebellar atrophies, spinal bulbar muscular atrophy, diabetes, amyotrophic lateral sclerosis and other motor neuron diseases. The disclosed methods can be used in combination with calpain inhibitors to treat disease or pathological conditions related to the activity of caspases and calpain associated with a specific disease or condition.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: September 6, 2011
    Assignee: Georgia Tech Research Corporation
    Inventors: James C. Powers, Jonathan D. Glass
  • Publication number: 20110053858
    Abstract: A novel class of peptide ?-ketoamides useful for selectively inhibiting calpains, selectively inhibiting cysteine proteases, and generally inhibiting all cysteine proteases, having the formula M-AA2-AA1-CO—NH—(CH2)n—R3. Processes for the synthesis of peptidyl ?-ketoamide derivatives.
    Type: Application
    Filed: July 16, 2008
    Publication date: March 3, 2011
    Inventors: James C. Powers, Jonathan D. Glass, Asli Ovat, Zhaozhao Li
  • Patent number: 7521427
    Abstract: The present disclosure provides compositions for inhibiting proteases, methods for synthesizing the compositions, and methods of using the disclosed protease inhibitors. Aspects of the disclosure include peptidyl allyl sulfone compositions that inhibit proteases, for example cysteine proteases, either in vivo or in vitro.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: April 21, 2009
    Assignee: Georgia Tech Research Corporation
    Inventors: James C. Powers, Marion Gabriele Gotz
  • Patent number: 7482379
    Abstract: The present disclosure provides compositions for inhibiting proteases, methods for synthesizing the compositions, and methods of using the disclosed protease inhibitors. Aspects of the disclosure include a peptidyl propenoyl hydrazide compositions that inhibit proteases, for example cysteine proteases, either in vivo or in vitro.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: January 27, 2009
    Assignee: Georgia Tech Research Corporation
    Inventors: James C. Powers, Juliana Asgian, Özlem Dogan Ekici, Marion Gabriele Gotz, Karen Ellis James, Zhao Zhao Li, Brian Rukamp
  • Patent number: 7429560
    Abstract: Compositions and methods for treating neural pathologies are provided. In particular, compositions and methods for treating neural pathologies including axonal degeneration are provided. The compositions include peptide ?-ketomides optionally in combination with a second therapeutic agent. Another aspect of the invention provides compositions and methods for treating hyperproliferative disorders. Exemplary compositions for treating hyperproliferative disorders include an anti-proliferative agent such as paclitaxel, in combination with a calpain inhibitor such as AK295.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: September 30, 2008
    Assignees: Georgia Tech Research Corporation, Emory University
    Inventors: James C. Powers, Jonathan D. Glass
  • Patent number: 7056947
    Abstract: The present invention provides compositions for inhibiting proteases, methods for synthesizing the compositions, and methods of using the disclosed protease inhibitors. Aspects of the invention include aza-peptide epoxide compositions that inhibit proteases, for example cysteine proteases, either in vivo or in vitro. The disclosed compounds, pharmaceutically acceptable salts, pharmaceutically acceptable derivatives, prodrugs, or combinations thereof can be used to treat disease or pathological conditions related to the activity of proteases associated with a specific disease or condition. Such treatable conditions include viral infections, stroke, neurodegenerative disease, and inflammatory disease, among others.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: June 6, 2006
    Assignee: Georgia Tech Research Corp.
    Inventors: James C. Powers, Juliana L. Asgian, Karen E. James, Zhao-Zhao Li
  • Publication number: 20040127427
    Abstract: Compositions and methods for treating neural pathologies are provided. In particular, compositions and methods for treating neural pathologies including axonal degeneration are provided. The compositions include peptide &agr;-ketomides optionally in combination with a second therapeutic agent. Another aspect of the invention provides compositions and methods for treating hyperproliferative disorders. Exemplary compositions for treating hyperproliferative disorders include an anti-proliferative agent such as paclitaxel, in combination with a calpain inhibitor such as AK295.
    Type: Application
    Filed: September 25, 2003
    Publication date: July 1, 2004
    Inventors: James C. Powers, Jonathan D. Glass
  • Publication number: 20040048327
    Abstract: The present invention provides compositions for inhibiting proteases, methods for synthesizing the compositions, and methods of using the disclosed protease inhibitors. Aspects of the invention include aza-peptide epoxide compositions that inhibit proteases, for example cysteine proteases, either in vivo or in vitro. The disclosed compounds, pharmaceutically acceptable salts, pharmaceutically acceptable derivatives, prodrugs, or combinations thereof can be used to treat disease or pathological conditions related to the activity of proteases associated with a specific disease or condition. Such treatable conditions include viral infections, stroke, neurodegenerative disease, and inflammatory disease, among others.
    Type: Application
    Filed: June 24, 2003
    Publication date: March 11, 2004
    Inventors: James C. Powers, Juliana L. Asgian, Karen E. James, Zhao-Zhao Li
  • Patent number: 6235929
    Abstract: A novel class of tripeptide &agr;-ketoamides useful for selectively inhibiting serine proteases, selectively inhibiting cysteine proteases, generally inhibiting all serine proteases, and generally inhibiting all cysteine proteases, having the formula M1—AA—AA—AA—CO—NR3R4.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: May 22, 2001
    Assignee: Georgia Tech Research Corporation
    Inventor: James C Powers
  • Patent number: 5952307
    Abstract: Peptidyl derivatives of diesters of .alpha.-aminoalkylphosphonic acids with basic substituents, their use in inhibiting serine proteases with trypsin-like specificity and their roles as anti-inflammatory agents, anticoagulants, and anti-tumor agents.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: September 14, 1999
    Assignee: Georgia Tech Research Corp.
    Inventors: James C. Powers, Delwin S. Jackson, Liming Ni
  • Patent number: 5916877
    Abstract: Fluorescent 1-peptidylaminoalkanephosphonate derivatives, and their use in detecting and studying the distribution of serine proteases in cells and biological systems.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: June 29, 1999
    Assignee: Georgia Tech Research Corporation
    Inventors: James C. Powers, Shin Ono
  • Patent number: 5763576
    Abstract: A novel class of tetrapeptide .alpha.-ketoamides useful for selectively inhibiting serine proteases, selectively inhibiting cysteine proteases, generally inhibiting all serine proteases, and generally inhibiting all cysteine proteases, having the formula M.sub.1 --AA.sup.1 --AA.sup.2 --AA.sup.3 --AA.sup.4 --CO--NR.sub.3 R.sub.4.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: June 9, 1998
    Assignee: Georgia Tech Research Corp.
    Inventor: James C. Powers
  • Patent number: 5726314
    Abstract: Novel quaternary pyridinium compounds useful in inhibiting acetylcholinesterase in mammals of the general structure: ##STR1## or pharmaceutically acceptable salts thereof, where R.sub.5 is pentafluorophenyl, phenyl monosubstituted with K, phenyl disubstituted with K, phenyl trisubstituted with K, or naphthyl; R.sub.6 is H, C.sub.1-6 alkyl, phenyl, pentafluorophenyl, phenyl mono, di, or trisubstituted with K, C.sub.1-6 alkyl with an attached phenyl group, C.sub.1-6 alkyl with an attached phenyl group mono, di, or trisubstituted with K; K is halogen, COOH, OH, CN, NO.sub.2, NH.sub.2, C.sub.1-6 alkyl, C.sub.1-6 fluorinated alkyl, C.sub.1-6 alkoxy, C.sub.1-6 alkylamine, C.sub.1-6 alkyl--O--CO--, C.sub.1-6 alkyl--CO--NH--, C.sub.1-6 alkyl--NH--CO--NH--, C.sub.1-6 alkyl--NH--CO--O--, C.sub.1-6 alkyl--NH--CO--, or (C.sub.1-6 alkyl).sub.2 N--CO--; X is OH, C.sub.1-6 alkyl--NH--CO--O--, (C.sub.1-6 alkyl).sub.2 --N--CO--O--, C.sub.1-6 fluoroalkyl--NH--CO--, or (C.sub.1-6 fluoroalkyl).sub.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 10, 1998
    Assignee: Georgia Tech Research Corp.
    Inventors: James C. Powers, Jerry J. Buccafusco, Kenneth M. Starks
  • Patent number: 5714615
    Abstract: Methods for using novel quaternary pyridinium compounds in inhibiting acetylcholinesterase in mammals, specifically using the quaternary pyridinium compounds in the prophylaxis and treatment of organophosphate poisoning and mammalian dementia by mimicking or opposing the actions of the natural neurotransmitter acetylcholine.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: February 3, 1998
    Assignee: Georgia Tech Research Corporation
    Inventors: James C. Powers, Jerry J. Buccafusco, Kenneth M. Starks
  • Patent number: 5686419
    Abstract: Peptidyl derivatives of diesters of .alpha.-aminoalkylphosphonic acids with basic substitutents, their use in inhibiting serine proteases with trypsin-like specificity and their roles as anti-inflammatory agents, anticoagulants, and anti-tumor agents.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: November 11, 1997
    Assignee: Georgia Tech Research Corp.
    Inventors: James C. Powers, Bogdan Boduszek, Jozef Oleksyszyn
  • Patent number: 5681821
    Abstract: Fluorescent 1-peptidylaminoalkanephosphonate derivatives, and their use in detecting and studying the distribution of serine proteases in cells and biological systems.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: October 28, 1997
    Assignee: Georgia Tech Research Corp.
    Inventors: James C. Powers, Ahmed S. Abuelyaman
  • Patent number: 5650508
    Abstract: A novel class of peptide .alpha.-ketoamides useful for selectively inhibiting serine proteases, selectively inhibiting cysteine proteases, generally inhibiting all serine proteases, and generally inhibiting all cysteine proteases, having the formula M.sub.1 --AA--NH--CHR.sub.2 --CO--CO--NR.sub.3 R.sub.4, M.sub.1 --AA.sub.2 --AA.sub.1 --CO--NR.sub.3 R.sub.4, M.sub.1 --AA--AA--AA--CO--NR.sub.3 R.sub.4, M.sub.1 --AA--AA--AA--AA--CO--NR.sub.3 R.sub.4, or M.sub.1 --AA--CO--NR.sub.3 R.sub.4.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: July 22, 1997
    Assignee: Georgia Tech Research Corporation
    Inventor: James C. Powers