Patents by Inventor Mark S. Spencer
Mark S. Spencer 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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Publication number: 20080312730Abstract: Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.Type: ApplicationFiled: June 25, 2008Publication date: December 18, 2008Inventors: Carey V. Campbell, Alvaro J. Laguna, Mark S. Spencer
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Patent number: 6923827Abstract: Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.Type: GrantFiled: November 20, 2002Date of Patent: August 2, 2005Assignee: Gore Enterprise Holdings, Inc.Inventors: Carey V. Campbell, Alvaro J. Laguna, Mark S. Spencer
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Publication number: 20030074016Abstract: Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.Type: ApplicationFiled: November 20, 2002Publication date: April 17, 2003Inventors: Carey V. Campbell, Alvaro J. Laguna, Mark S. Spencer
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Patent number: 6120477Abstract: Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.Type: GrantFiled: May 19, 1997Date of Patent: September 19, 2000Assignee: Gore Enterprise Holdings, Inc.Inventors: Carey V. Campbell, Alvaro J. Laguna, Mark S. Spencer
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Patent number: 5904978Abstract: An electrically conductive composite article is provided having a polytetrafluoroethylene fibril matrix and a predetermined volume. The electrically conductive composite article comprises electrically conductive particles, and electrically nonconductive, energy expanded hollow polymeric particles. The volume percent of the electrically conductive particles is at least 20 volume percent. The electrically conductive composite article is continuously electrically conductive throughout its entire structure. Accordingly, electric current freely flows through the composite article due to the low resistivity of the article. The electrically conductive composite article may additionally include an elastomer material disposed within the article in a discontinuous fashion.Type: GrantFiled: December 15, 1995Date of Patent: May 18, 1999Assignee: W. L. Gore & Associates, Inc.Inventors: James R. Hanrahan, Michael P. Kienzle, Mark S. Spencer
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Patent number: 5868704Abstract: Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.Type: GrantFiled: June 26, 1996Date of Patent: February 9, 1999Assignee: W. L. Gore & Associates, Inc.Inventors: Carey V. Campbell, Alvaro J. Laguna, Mark S. Spencer
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Patent number: 5846355Abstract: The present invention is an improved jacketing material for all forms of electro-magnetic energy conductors. The jacket material of the present invention comprises a silicone material that is imbibed into a porous polymer, such as expanded polytetrafluoroethylene, to produce a flexible and durable composite. When applied as a cable jacket, the composite material of the present invention produces dramatic improvement over the use of silicone alone, especially in the areas of load sharing, resistance to fatigue from repeated flexure, and resistance to harsh environmental conditions. The ability of the material of the present invention to withstand repeated autoclave cycles without compromise makes it particularly suitable for cable jacketing in biomedical applications.Type: GrantFiled: March 22, 1996Date of Patent: December 8, 1998Assignee: W. L. Gore & Associates, Inc.Inventors: Mark S. Spencer, Edward A. Rubin
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Patent number: 5519172Abstract: The present invention is an improved jacketing material for all forms of electro-magnetic energy conductors. The jacket material of the present invention comprises a silicone material that is imbibed into a porous polymer, such as expanded polytetrafluoroethylene, to produce a flexible and durable composite. When applied as a cable jacket, the composite material of the present invention produces dramatic improvement over the use of silicone alone, especially in the areas of load sharing, resistance to fatigue from repeated flexure, and resistance to harsh environmental conditions. The ability of the material of the present invention to withstand repeated autoclave cycles without compromise makes it particularly suitable for cable jacketing in bio-medical applications.Type: GrantFiled: October 11, 1994Date of Patent: May 21, 1996Assignee: W. L. Gore & Associates, Inc.Inventors: Mark S. Spencer, Edward Rubin
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Patent number: 5496970Abstract: This invention provides a high-density planar contact array capable of interconnecting various electronic devices using a pad to pad approach or pad to pin, which is capable of accommodating non-coplanarity in the Z axis of printed circuit boards but which still maintains good electrical contact.The array comprises an insulative substrate sheet that has a plurality of parallel conductive lines terminating in a pad over a hole in the substrate.Type: GrantFiled: September 20, 1994Date of Patent: March 5, 1996Assignee: W. L. Gore & Associates, Inc.Inventor: Mark S. Spencer
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Patent number: 5449862Abstract: This invention provides a high-density planar contact array capable of interconnecting various electronic devices using a pad to pad approach or pad to pin, and which is capable of accommodating non-coplanarity in the Z axis of printed circuit boards but which still maintains good electrical contact.The array comprises a flat, flexible insulative substrate sheet that has a plurality of parallel conductive lines or an array of circles or polygons of which each has had insulative material surrounding or on at least two sides of the conductive lines or polygons removed in the Z axis. The insulative material is removed in such a way as to create a generally trapezoid shape having a greater length side opposite the conductor when viewed through a cross-section of the X or Y axis. This trapezoid shape allows free Z axis motion while limiting X and Y axis motion.Type: GrantFiled: August 25, 1993Date of Patent: September 12, 1995Assignee: W. L. Gore & Associates, Inc.Inventor: Mark S. Spencer