Patents by Inventor Dan J. Wendt

Dan J. Wendt 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: 20100331256
    Abstract: The present invention provides variants of C-type natriuretic peptide (CNP) comprising one or more deletions; additions of and/or substitutions with natural amino acids, unnatural amino acids and/or peptidomimetics (including peptide bond isosteres); amino acid extensions; and/or other chemical moieties such as, e.g., poly(ethylene glycol) and hydrophobic acids. The CNP variants are useful as therapeutic agents for the treatment of diseases responsive to CNP, including but not limited to bone-related disorders such as, e.g., skeletal dysplasias and achondroplasia, and vascular smooth muscle disorders such as, e.g., restenosis and arteriosclerosis.
    Type: Application
    Filed: November 21, 2008
    Publication date: December 30, 2010
    Inventors: Dan J. Wendt, Mika Aoyagi-Scharber, Sean Bell, Dong Wei, Joshua R. Bliesath, Emil D. Kakkis
  • Publication number: 20080260715
    Abstract: The present invention provides a highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase and biologically active mutants, fragments and analogs thereof as well as pharmaceutical formulations comprising highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase. The invention also provides methods for treating diseases caused all or in part by deficiencies in human N-acetylgalactosamine-4-sulfatase including MPS VI and methods for producing and purifying the recombinant precursor enzyme to a highly purified form.
    Type: Application
    Filed: May 18, 2007
    Publication date: October 23, 2008
    Applicant: BIOMARIN PHARMACEUTICAL INC.
    Inventors: Minmin Qin, Gary N. Zecherle, Wai-Pan Chan, Paul A. Fitzpatrick, Stuart Swiedler, John M. Henstrand, Dan J. Wendt, Lin Chen, Christopher M. Starr
  • Patent number: 6972124
    Abstract: The present invention provides a highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase and biologically active mutants, fragments and analogs thereof as well as pharmaceutical formulations comprising highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase. The invention also provides methods for treating diseases caused all or in part by deficiencies in human N-acetylgalactosamine-4-sulfatase including MPS VI and methods for producing and purifying the recombinant precursor enzyme to a highly purified form.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: December 6, 2005
    Assignee: BioMarin Pharmaceuticals Inc.
    Inventors: Minmin Qin, Gary N. Zecherle, Wai-Pan Chan, Paul A. Fitzpatrick, Stuart Sweidler, John M. Henstrand, Dan J. Wendt, Lin Chen, Christopher M. Starr
  • Patent number: 6866844
    Abstract: The present invention provides a highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase and biologically active mutants, fragments and analogs thereof as well as pharmaceutical formulations comprising highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase. The invention also provides methods for treating diseases caused all or in part by deficiencies in human N-acetylgalactosamine-4-sulfatase including MPS VI and methods for producing and purifying the recombinant precursor enzyme to a highly purified form.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: March 15, 2005
    Assignee: Biomarin Pharmaceutical Inc.
    Inventors: Minmin Qin, John M. Henstrand, Gary N. Zecherle, Dan J. Wendt, Wai-Pan Chan, Lin Chen, Paul A. Fitzpatrick, Christopher M. Starr
  • Publication number: 20040131605
    Abstract: The present invention provides a highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase and biologically active mutants, fragments and analogs thereof as well as pharmaceutical formulations comprising highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase. The invention also provides methods for treating diseases caused all or in part by deficiencies in human N-acetylgalactosamine-4-sulfatase including MPS VI and methods for producing and purifying the recombinant precursor enzyme to a highly purified form.
    Type: Application
    Filed: November 7, 2003
    Publication date: July 8, 2004
    Applicant: BIOMARIN PHARMACEUTICAL INC.
    Inventors: Minmin Qin, Gary N. Zecherle, Wai-Pan Chan, Paul A. Fitzpatrick, Stuart Sweidler, John M. Henstrand, Dan J. Wendt, Lin Chen, Christopher M. Starr
  • Publication number: 20040101524
    Abstract: The present invention provides a highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase and biologically active mutants, fragments and analogs thereof as well as pharmaceutical formulations comprising highly purified recombinant human precursor N-acetylgalactosamine-4-sulfatase. The invention also provides methods for treating diseases caused all or in part by deficiencies in human N-acetylgalactosamine-4-sulfatase including MPS VI and methods for producing and purifying the recombinant precursor enzyme to a highly purified form.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 27, 2004
    Inventors: Minmin Qin, John M. Henstrand, Gary N. Zecherle, Dan J. Wendt, Wai-Pan Chan, Lin Chen, Paul A. Fitzpatrick, Christopher M. Starr
  • Patent number: 6569661
    Abstract: The present invention provides a recombinant human &agr;-L-iduronidase and biologically active fragments and mutants thereof, large scale methods to produce and purify commercial grade recombinant human &agr;-L-iduronidase enzyme as well as methods to treat certain genetic disorders including &agr;-L-iduronidase deficiency and mucopolysaccharidosis I (MPS 1).
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: May 27, 2003
    Assignee: BioMarin Pharmaceutical Inc.
    Inventors: Minmin Qin, Wai-Pan Chan, Lin Chen, Paul A. Fitzpatrick, John M. Hendstrand, Dan J. Wendt, Gary N. Zecherle, Christopher M. Starr, Emil D. Kakkis
  • Publication number: 20020146802
    Abstract: The present invention provides a recombinant human &agr;-L-iduronidase and biologically active fragments and muteins thereof with a purity greater than 99%. The present invention further provides large-scale methods to produce and purify commercial grade recombinant human &agr;-L-iduronidase enzyme thereof.
    Type: Application
    Filed: November 13, 2001
    Publication date: October 10, 2002
    Inventors: Minmin Qin, Wai-Pan Chan, Lin Chen, Paul A. Fitzpatrick, John M. Henstrand, Dan J. Wendt, Gary N. Zecherle, Christopher M. Starr, Emil D. Kakkis
  • Patent number: 6303354
    Abstract: There is provided an improved process for the biosynthetic production of indigo, the improvement comprising removing unwanted by-products such as isatin or indirubin from the broth in which such indigo is produced. Isatin can be removed by enzymatic activity using an isatin-removing enzyme such as an isatin hydrolase, or by other techniques such as process parameters (elevated temperature, pH), or by contacting the broth containing the isatin with appropriate adsorption compounds/compositions such as carbon or appropriate resins. Since isatin is the precursor of indirubin, the indirubin levels are decreased as a result of isatin removal.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: October 16, 2001
    Assignee: Genencor International, Inc.
    Inventors: Walter Weyler, Timothy C. Dodge, John J. Lauff, Dan J. Wendt
  • Patent number: 6268328
    Abstract: The present invention relates to novel variant EGIII or EGIII-like cellulases which have improved stability. The variant cellulases have performance sensitive residues replaced to a residue having improved stability.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: July 31, 2001
    Assignee: Genencor International, Inc.
    Inventors: Colin Mitchinson, Dan J. Wendt
  • Patent number: 6190892
    Abstract: There is provided an improved process for the biosynthetic production of indigo, the improvement comprising removing unwanted by-products such as isatin or indirubin from the broth in which such indigo is produced. Isatin can be removed by enzymatic activity using an isatin-removing enzyme such as an isatin hydrolase, or by other techniques such as process parameters (elevated temperature, pH), or by contacting the broth containing the isatin with appropriate adsorption compounds/compositions such as carbon or appropriate resins. Since isatin is the precursor of indirubin, the indirubin levels are decreased as a result of isatin removal.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: February 20, 2001
    Assignee: Genencor International, Inc.
    Inventors: Walter Weyler, Timothy C. Dodge, John J. Lauff, Dan J. Wendt
  • Patent number: 5866396
    Abstract: There is provided an improved process for the biosynthetic production of indigo, the improvement comprising removing unwanted by-products such as isatin or indirubin from the broth in which such indigo is produced. Isatin can be removed by enzymatic activity using an isatin-removing enzyme such as an isatin hydrolase, or by other techniques such as process parameters (elevated temperature, pH), or by contacting the broth containing the isatin with appropriate adsorption compounds/compositions such as carbon or appropriate resins. Since isatin is the precursor of indirubin, the indirubin levels are decreased as a result of isatin removal.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: February 2, 1999
    Inventors: Walter Weyler, Timothy C. Dodge, John J. Lauff, Dan J. Wendt
  • Patent number: 5350904
    Abstract: A packaging system is disclosed which includes a susceptor heating means having selective responsiveness to microwave radiation. The susceptor surface has a plurality of regions, where at least one region has an altered responsiveness to microwave radiation which is achieved by disruptions in the susceptor surface. A method for making regions of a susceptor selectively responsive to microwave heating by disrupting the continuity of the metallized film of the susceptor is also disclosed.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: September 27, 1994
    Assignee: The Pillsbury Company
    Inventors: Jonathan D. Kemske, James R. Consaul, Diane R. Rosenwald, Robert B. Shomo, Jr., Dan J. Wendt
  • Patent number: 5220143
    Abstract: A packaging system is disclosed which includes a susceptor that heats when exposed to microwave radiation, and which has a selective responsiveness to microwave radiation. The susceptor surface has a plurality of regions, where at least one region has an altered responsiveness to microwave radiation which is achieved by disruptions in the susceptor surface. A method for making regions of a susceptor selectively responsive to microwave heating by disrupting the continuity of the metallized film of the susceptor is also disclosed.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: June 15, 1993
    Assignee: The Pillsbury Company
    Inventors: Jonathon D. Kemske, James R. Consaul, Diane R. Rosenwald, Robert B. Shomo, Jr., Dan J. Wendt
  • Patent number: 5006684
    Abstract: An apparatus for heating a food item in a microwave oven is disclosed which has heater regions in combination with a reflective lattice structure. The combination of the reflective lattice structure and heater regions provides a food heating device which substantially maintains its reflectance, absorbance and transmittance during microwave heating. Substantial uniformity of heating is also achieved. The reflectance, transmittance and absorbance of the food heating device can be adjusted by changing the relative configuration and construction of the lattice structure and the heater regions.
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: April 9, 1991
    Assignee: The Pillsbury Company
    Inventors: Dan J. Wendt, Jonathon D. Kemske, Peter S. Pesheck
  • Patent number: 4972059
    Abstract: A method and apparatus is disclosed for a system for heating food products in a variety of microwave ovens. The invention allows the temperature profile of the food product to be set at a predetermined level. A grid is used in combination with a conductive ring. There is preferably a spacing between the grid and the surface of the food product between about 0.25 inch and about 2.4 inches, a margin between openings in the grid between about 0.6 inch and about 1.8 inches, and the openings in the grid are of a size between about 0.75 inch and about 1.75 inches. A single iris embodiment is disclosed. The single iris may be in contact with the surface of the food product or spaced therefrom. An embodiment is also disclosed wherein a grid is in contact with the food surface.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: November 20, 1990
    Assignee: The Pillsbury Company
    Inventors: Dan J. Wendt, Jonathon D. Kemske, Peter S. Pesheck, Ronald R. Lentz, Sheryl L. Smith, Diane R. Rosenwald, Shomo, Jr., Robert B., David H. Larkey, Matthew W. Lorence, John Eger, Jr., Alvaro Santos, Thomas R. Frigge
  • Patent number: 4934829
    Abstract: A food container for use in a microwave oven is disclosed. The container contains a plurality of food substances, and employs a metal shield to shield at least one of the food substances from microwave radiation. Arcing and other problems associated with the use of metal shielding are avoided by proper selection of the geometry of the metal shield. The metal shield is preferably looped in a manner which provides some electrical inductance, and the ends of the metal shield are overlapped and separated by a dielectric material to provide some electrical capacitance. The geometry of the shield is selected so that the inductance and the capacitance in effect form a "tuned circuit" which minimizes problems associated with resonance and which eliminates arcing.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: June 19, 1990
    Assignee: The Pillsbury Company
    Inventor: Dan J. Wendt
  • Patent number: 4927991
    Abstract: A food package for a microwave oven is disclosed which has a grid in combination with a susceptor means. The combination of the grid and susceptor means provides a heater element which substantially maintains its reflectance, absorbance and transmittance during microwave heating. Substantial uniformity of heating is also achieved. The reflectance, transmittance and absorbance can be adjusted by changing certain design factors, including hole size, susceptor impedance, grid geometry, spacing between the grid and susceptor, and the spacing between adjacent holes.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: May 22, 1990
    Assignee: The Pillsbury Company
    Inventors: Dan J. Wendt, Jonathon D. Kemske, Peter S. Pesheck
  • Patent number: 4894503
    Abstract: A package for heating food in a microwave oven is disclosed. The package includes metal shielding or other metal components which cause a gain in electric field strength which is greater than 3. The present invention also involves low load microwave environments where the electric field strength is greater than 10 volts per centimeter. A rigid, dimensionally stable dielectric support is provided in close proximity to a conductive sheet, being spaced less than 0.5 inch from the conductive sheet. The dielectric support is composed of material selected to avoid failure of the dielectric support in high electrical fields which may exist near the conductive sheet during microwave irradiation. The dielectric support material has a dielectric loss factor less than 0.005, and a failure temperature greater than 101.degree. C. The present invention relates to intrinsically nonarcing packages.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: January 16, 1990
    Assignee: The Pillsbury Company
    Inventor: Dan J. Wendt
  • Patent number: 4851631
    Abstract: A food container for use in a microwave oven is disclosed. The container contains a plurality of food substances, and employs a metal shield to shield at least one of the food substances from microwave radiation. Arcing and other problems associated with the use of metal shielding are avoided by proper selection of the geometry of the metal shield. The metal shield is preferably looped in a manner which provides some electrical inductance, and the ends of the metal shield are overlapped and separated by a dielectric material to provide some electrical capacitance. The geometry of the shield is selected so that the inductance and the capacitance in effect form a "tuned circuit" which minimizes problems associated with resonance and which eliminates arcing.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: July 25, 1989
    Assignee: The Pillsbury Company
    Inventor: Dan J. Wendt