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).
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Patent number: 9566141Abstract: 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: GrantFiled: August 26, 2013Date of Patent: February 14, 2017Assignee: Orapharma, Inc.Inventors: Zhangwen Wu, Michael J. Rello, James F. Hooper, James R. Lawter
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Publication number: 20140093839Abstract: 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: ApplicationFiled: August 26, 2013Publication date: April 3, 2014Applicant: Orapharma, Inc.Inventors: Zhangwen WU, Michael J. RELLO, James F. HOOPER, James R. LAWTER
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Patent number: 8480615Abstract: 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: GrantFiled: June 17, 2011Date of Patent: July 9, 2013Assignee: Orapharma, Inc.Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik DeBrun
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Publication number: 20120010561Abstract: 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: ApplicationFiled: September 20, 2011Publication date: January 12, 2012Applicant: ORAPHARMA, INC.Inventors: Zhangwen Wu, Michael J. Rello, James F. Hopper, JR., James R. Lawter
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Patent number: 8048021Abstract: 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: GrantFiled: November 19, 2009Date of Patent: November 1, 2011Assignee: Orapharma, Inc.Inventors: Zhangwen Wu, Michael J. Rello, James F. Hooper, Jr., James R. Lawter
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Publication number: 20110245764Abstract: 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: ApplicationFiled: June 17, 2011Publication date: October 6, 2011Inventors: James R. LAWTER, Zhangwen WU, Michael J. RELLO, Charles D. FAUST, Erik deBRUN
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Patent number: 7976489Abstract: 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: GrantFiled: December 2, 2008Date of Patent: July 12, 2011Assignee: OraPharma, Inc.Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik deBrun
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Patent number: 7976491Abstract: 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: GrantFiled: December 2, 2008Date of Patent: July 12, 2011Assignee: OraPharma, Inc.Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik deBrun
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Patent number: 7976490Abstract: 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: GrantFiled: December 2, 2008Date of Patent: July 12, 2011Assignee: Orapharma, Inc.Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello
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Publication number: 20100136502Abstract: 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: ApplicationFiled: November 19, 2009Publication date: June 3, 2010Inventors: Zhangwen WU, Michael J. Rello, James F. Hooper, JR., James R. Lawter
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Patent number: 7699609Abstract: 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: GrantFiled: January 23, 2004Date of Patent: April 20, 2010Assignee: Orapharma, Inc.Inventors: James R. Lawter, Michael G. Lanzilotti, Mark Bates, Gregory H. Hunter
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Publication number: 20090148500Abstract: 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: ApplicationFiled: December 2, 2008Publication date: June 11, 2009Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello
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Publication number: 20090142727Abstract: 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: ApplicationFiled: December 2, 2008Publication date: June 4, 2009Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik deBrun
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Publication number: 20090142728Abstract: 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: ApplicationFiled: December 2, 2008Publication date: June 4, 2009Inventors: James R. Lawter, Zhangwen Wu, Michael J. Rello, Charles D. Faust, Erik deBrun
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Patent number: 7135193Abstract: 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: GrantFiled: December 22, 2004Date of Patent: November 14, 2006Assignee: QLT, Inc.Inventors: Narendra R. Desai, Bushra J. Agha, Kalidas Madhavrao Kale, James R. Lawter
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Patent number: 6890555Abstract: 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: GrantFiled: June 8, 2000Date of Patent: May 10, 2005Assignee: QLT, Inc.Inventors: Narendra Raghunathji Desai, Bushra J. Agha, Kalidas Madhavrao Kale, James R. Lawter
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Publication number: 20040152042Abstract: 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: ApplicationFiled: January 23, 2004Publication date: August 5, 2004Inventors: James R. Lawter, Michael G. Lanzilotti, Mark Bates, Gregory H. Hunter
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Patent number: 6682348Abstract: 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: GrantFiled: March 29, 2002Date of Patent: January 27, 2004Assignee: OraPharma, Inc.Inventors: James R. Lawter, Michael G. Lanzilotti, Mark Bates, Gregory H. Hunter
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Publication number: 20030186191Abstract: 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: ApplicationFiled: March 29, 2002Publication date: October 2, 2003Applicant: OraPharma, Inc.Inventors: James R. Lawter, Michael G. Lanzilotti, Mark Bates, Gregory H. Hunter
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Patent number: 5622498Abstract: 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: GrantFiled: January 22, 1993Date of Patent: April 22, 1997Assignee: American Cyanamid CompanyInventors: Nancy S. Brizzolara, Michael G. Lanzilotti, James R. Lawter