Patents by Inventor James R. Lawter

James R. Lawter 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: 9566141
    Abstract: The invention includes a device for inserting a medicament within a body cavity of a mammal, and a cartridge for containing the medicament within the device, where the cartridge includes a housing, a retractable chamber for containing medicament disposed within the housing, and a substantially stationary member disposed within the barrel of the retractable chamber, where upon activation of the device, the retractable chamber is retracted about the substantially stationary member, thereby depositing medicament within the body cavity.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: February 14, 2017
    Assignee: Orapharma, Inc.
    Inventors: Zhangwen Wu, Michael J. Rello, James F. Hooper, James R. Lawter
  • Publication number: 20140093839
    Abstract: The invention includes a device for inserting a medicament within a body cavity of a mammal, and a cartridge for containing the medicament within the device, where the cartridge includes a housing, a retractable chamber for containing medicament disposed within the housing, and a substantially stationary member disposed within the barrel of the retractable chamber, where upon activation of the device, the retractable chamber is retracted about the substantially stationary member, thereby depositing medicament within the body cavity.
    Type: Application
    Filed: August 26, 2013
    Publication date: April 3, 2014
    Applicant: Orapharma, Inc.
    Inventors: Zhangwen WU, Michael J. RELLO, James F. HOOPER, James R. LAWTER
  • Patent number: 8480615
    Abstract: A device for inserting a medicament within a body cavity of a mammal, the device including a cartridge for containing the medicament, the cartridge including a housing, a retractable chamber disposed within the housing and having a lumen sized to contain the medicament, a stationary member disposed within the lumen and having a sized to provide a sliding fit within the lumen to provide for retraction of the retractable chamber about the stationary member upon actuation of the device, and means for retracting the retractable chamber while maintaining the stationary member in a stationary position. The device further includes means for activating the means for retracting the retractable chamber. The device further includes an actuator, the actuator including a handle case having a proximal portion for gripping and a distal portion including means for attaching the actuator to a cartridge.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: July 9, 2013
    Assignee: Orapharma, Inc.
    Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik DeBrun
  • Publication number: 20120010561
    Abstract: The invention includes a device for inserting a medicament within a body cavity of a mammal, and a cartridge for containing the medicament within the device, where the cartridge includes a housing, a retractable chamber for containing medicament disposed within the housing, and a substantially stationary member disposed within the barrel of the retractable chamber, where upon activation of the device, the retractable chamber is retracted about the substantially stationary member, thereby depositing medicament within the body cavity.
    Type: Application
    Filed: September 20, 2011
    Publication date: January 12, 2012
    Applicant: ORAPHARMA, INC.
    Inventors: Zhangwen Wu, Michael J. Rello, James F. Hopper, JR., James R. Lawter
  • Patent number: 8048021
    Abstract: The invention includes a device for inserting a medicament within a body cavity of a mammal, and a cartridge for containing the medicament within the device, where the cartridge includes a housing, a retractable chamber for containing medicament disposed within the housing, and a substantially stationary member disposed within the barrel of the retractable chamber, where upon activation of the device, the retractable chamber is retracted about the substantially stationary member, thereby depositing medicament within the body cavity.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: November 1, 2011
    Assignee: Orapharma, Inc.
    Inventors: Zhangwen Wu, Michael J. Rello, James F. Hooper, Jr., James R. Lawter
  • Publication number: 20110245764
    Abstract: A device for inserting a medicament within a body cavity of a mammal, the device including a cartridge for containing the medicament, the cartridge including a housing, a retractable chamber disposed within the housing and having a lumen sized to contain the medicament, a stationary member disposed within the lumen and having a sized to provide a sliding fit within the lumen to provide for retraction of the retractable chamber about the stationary member upon actuation of the device, and means for retracting the retractable chamber while maintaining the stationary member in a stationary position. The device further includes means for activating the means for retracting the retractable chamber. The device further includes an actuator, the actuator including a handle case having a proximal portion for gripping and a distal portion including means for attaching the actuator to a cartridge.
    Type: Application
    Filed: June 17, 2011
    Publication date: October 6, 2011
    Inventors: James R. LAWTER, Zhangwen WU, Michael J. RELLO, Charles D. FAUST, Erik deBRUN
  • Patent number: 7976489
    Abstract: The invention includes a device for inserting a medicament within a body cavity of a mammal, the device including a cartridge for containing the medicament therein, the cartridge including a housing, a retractable chamber disposed within the housing and having a lumen, a substantially stationary member disposed within the lumen of the retractable chamber and having a uniform cross-section sized to provide a sliding fit within the lumen to provide for retraction of the retractable chamber about the substantially stationary member upon actuation of the device, and means for retracting the retractable chamber about the substantially stationary member while maintaining the substantially stationary member in a substantially stationary position upon actuation of the device; the device further including means for activating the means for retracting the retractable chamber.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: July 12, 2011
    Assignee: OraPharma, Inc.
    Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik deBrun
  • Patent number: 7976491
    Abstract: The invention includes an actuator for actuating a device for inserting a medicament within a body cavity of a mammal, the actuator including a handle case having a proximal portion for gripping and a distal portion including means for attaching the actuator to a cartridge for containing medicament, and means for creating a proximal to distal linear motion with respect to the handle case, wherein the cartridge includes a retractable chamber for containing the medicament disposed therein, a substantially stationary member and means for retracting the retractable chamber about the substantially stationary member while maintaining the substantially stationary member in a substantially stationary position.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: July 12, 2011
    Assignee: OraPharma, Inc.
    Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik deBrun
  • Patent number: 7976490
    Abstract: The invention includes a cartridge for use in a device for inserting a medicament within a body cavity of a mammal, the cartridge including a housing, a retractable chamber disposed within the housing and having a lumen having a uniform cross-section sized to contain the medicament therein, a substantially stationary member disposed within the lumen of the retractable chamber and having a uniform cross-section sized to provide a sliding fit within the lumen suitable to provide for retraction of the retractable chamber about the substantially stationary member upon actuation of the device; and means for retracting the retractable chamber about the substantially stationary member while maintaining the substantially stationary member in a substantially stationary position upon actuation of the device.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: July 12, 2011
    Assignee: Orapharma, Inc.
    Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello
  • Publication number: 20100136502
    Abstract: The invention includes a device for inserting a medicament within a body cavity of a mammal, and a cartridge for containing the medicament within the device, where the cartridge includes a housing, a retractable chamber for containing medicament disposed within the housing, and a substantially stationary member disposed within the barrel of the retractable chamber, where upon activation of the device, the retractable chamber is retracted about the substantially stationary member, thereby depositing medicament within the body cavity.
    Type: Application
    Filed: November 19, 2009
    Publication date: June 3, 2010
    Inventors: Zhangwen WU, Michael J. Rello, James F. Hooper, JR., James R. Lawter
  • Patent number: 7699609
    Abstract: A device for the treatment of periodontal disease. The device includes a handle that has a configuration familiar to dental professionals and a cartridge that is locked into the handle when use, typically delivery of a composition to a periodontal pocket, is desired. The cartridge provides for effective delivery of compositions, such as agents, as its tip is deformable, typically from a circular to an oval shape so as to flatten. The deformation may be made either manually, by the dental professional, or upon contact with teeth or other tissues, whereby this flattened tip can penetrate deeply into periodontal pockets for quick and direct application of the composition, for example, therapeutic agents.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: April 20, 2010
    Assignee: Orapharma, Inc.
    Inventors: James R. Lawter, Michael G. Lanzilotti, Mark Bates, Gregory H. Hunter
  • Publication number: 20090148500
    Abstract: The invention includes a cartridge for use in a device for inserting a medicament within a body cavity of a mammal, the cartridge including a housing, a retractable chamber disposed within the housing and having a lumen having a uniform cross-section sized to contain the medicament therein, a substantially stationary member disposed within the lumen of the retractable chamber and having a uniform cross-section sized to provide a sliding fit within the lumen suitable to provide for retraction of the retractable chamber about the substantially stationary member upon actuation of the device; and means for retracting the retractable chamber about the substantially stationary member while maintaining the substantially stationary member in a substantially stationary position upon actuation of the device.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 11, 2009
    Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello
  • Publication number: 20090142727
    Abstract: The invention includes a device for inserting a medicament within a body cavity of a mammal, the device including a cartridge for containing the medicament therein, the cartridge including a housing, a retractable chamber disposed within the housing and having a lumen, a substantially stationary member disposed within the lumen of the retractable chamber and having a uniform cross-section sized to provide a sliding fit within the lumen to provide for retraction of the retractable chamber about the substantially stationary member upon actuation of the device, and means for retracting the retractable chamber about the substantially stationary member while maintaining the substantially stationary member in a substantially stationary position upon actuation of the device; the device further including means for activating the means for retracting the retractable chamber.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 4, 2009
    Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik deBrun
  • Publication number: 20090142728
    Abstract: The invention includes an actuator for actuating a device for inserting a medicament within a body cavity of a mammal, the actuator including a handle case having a proximal portion for gripping and a distal portion including means for attaching the actuator to a cartridge for containing medicament, and means for creating a proximal to distal linear motion with respect to the handle case, wherein the cartridge includes a retractable chamber for containing the medicament disposed therein, a substantially stationary member and means for retracting the retractable chamber about the substantially stationary member while maintaining the substantially stationary member in a substantially stationary position.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 4, 2009
    Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik deBrun
  • Patent number: 7135193
    Abstract: Liposomal pharmaceutical formulations incorporating porphyrin photosensitizers useful for photodynamic therapy or diagnosis of malignant cells. The liposomal formulations comprise a porphyrin photosensitizer, particularly the hydro-mono benzoporphyrins (BPD) having light absorption maxima in the range of 670–780 nanometers, a disaccharide or polysaccharide and one or more phospholipids.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: November 14, 2006
    Assignee: QLT, Inc.
    Inventors: Narendra R. Desai, Bushra J. Agha, Kalidas Madhavrao Kale, James R. Lawter
  • Patent number: 6890555
    Abstract: Liposomal pharmaceutical formulations incorporating porphyrin photosensitizers useful for photodynamic therapy or diagnosis of malignant cells. The liposomal formulations comprise a porphyrin photosensitizer, particularly the hydro-mono benzoporphyrine (BPD) having light absorption maxima in the range of 670-780 nanometers, a disaccharide or polysaccharide and one or more phospholipids.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: May 10, 2005
    Assignee: QLT, Inc.
    Inventors: Narendra Raghunathji Desai, Bushra J. Agha, Kalidas Madhavrao Kale, James R. Lawter
  • Publication number: 20040152042
    Abstract: A device for the treatment of periodontal disease includes a handle that has a configuration familiar to dental professionals, and a cartridge, that is locked into the handle when use, typically delivery of a composition to a periodontal pocket is desired. The cartridge provides for effective delivery of compositions, such as agents, as its tip is deformable, typically from a circular to an oval shape so as to flatten. The deformation may be made, either manually, by the dental professional, or upon contact with teeth or other tissues, whereby this flattened tip can penetrate deeply into periodontal pockets for quick and direct application of the composition, for example, therapeutic agents.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventors: James R. Lawter, Michael G. Lanzilotti, Mark Bates, Gregory H. Hunter
  • Patent number: 6682348
    Abstract: A device for the treatment of periodontal disease includes a handle that has a configuration familiar to dental professionals, and a cartridge, that is locked into the handle when use, typically delivery of a composition to a periodontal pocket is desired. The cartridge provides for effective delivery of compositions, such as agents, as its tip is deformable, typically from a circular to an oval shape so as to flatten. The deformation may be made, either manually, by the dental professional, or upon contact with teeth or other tissues, whereby this flattened tip can penetrate deeply into periodontal pockets for quick and direct application of the composition, for example, therapeutic agents.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: January 27, 2004
    Assignee: OraPharma, Inc.
    Inventors: James R. Lawter, Michael G. Lanzilotti, Mark Bates, Gregory H. Hunter
  • Publication number: 20030186191
    Abstract: A device for the treatment of periodontal disease includes a handle that has a configuration familiar to dental professionals, and a cartridge, that is locked into the handle when use, typically delivery of a composition to a periodontal pocket is desired. The cartridge provides for effective delivery of compositions, such as agents, as its tip is deformable, typically from a circular to an oval shape so as to flatten. The deformation may be made, either manually, by the dental professional, or upon contact with teeth or other tissues, whereby this flattened tip can penetrate deeply into periodontal pockets for quick and direct application of the composition, for example, therapeutic agents.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Applicant: OraPharma, Inc.
    Inventors: James R. Lawter, Michael G. Lanzilotti, Mark Bates, Gregory H. Hunter
  • Patent number: 5622498
    Abstract: Oral compositions for the local administration of a therapeutic agent to a periodontal pocket of a patient for alleviating dental disease comprise a plurality of dry, discrete microparticles each of which comprise an effective amount of at least one therapeutic agent dispersed in a matrix comprising a biocompatible and biodegradable polymer. Apparatus and methods are also provided for the dispensing of the dry microparticles to the periodontal pocket whereby they become tacky and adhere to the involved tissue so as to induce long term therapeutic benefits.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: April 22, 1997
    Assignee: American Cyanamid Company
    Inventors: Nancy S. Brizzolara, Michael G. Lanzilotti, James R. Lawter