1
Ralph T Francis, Mark E Hughes, Anne E Claeson, Joel Cooper: Apparatus and method for producing a reinforced surgical fastener suture line. Bio Vascular, Haugen and Nikolai P A, May 19, 1998: US05752965 (590 worldwide citation)

An apparatus and method for providing reinforced surgical fastener suture lines to prevent tissue tearing and fluid leakage following the creation of an anastomosis, the closing of margins following the removal of diseased tissue, and/or the ligating and dividing of individual blood vessels. A retai ...


2
Ralph T Francis, Qing Hong Zhao, Amy Desmith, B Nicholas Oray: Resorbable implant materials. Bio Vascular, Fredrikson & Byron P A, November 6, 2001: US06312474 (276 worldwide citation)

A non-crosslinked, decellularized and purified mammalian tissue (e.g., bovine pericardium) having particular use as an implantable resorbable material. The material is treated by alkylating its primary amine groups in a manner sufficient to reduce the antigenicity of the tissue, permitting the treat ...


3
Ralph T Francis, Qing Hong Zhao, Amy DeSmith, B Nicholas Oray: Resorbable implant materials. Synovis Life Technologies, Fredrikson & Byron P A, November 25, 2003: US06652594 (201 worldwide citation)

A non-crosslinked, decellularized and purified mammalian tissue (e.g., bovine pericardium) having particular use as an implantable resorbable material. The material is treated by alkylating its primary amine groups in a manner sufficient to reduce the antigenicity of the tissue, permitting the treat ...


4
Ralph T Francis, Alan M Johnson: Reticulocyte assay control. Research & Diagnostics Systems, Fredikson & Byron P A, April 7, 1998: US05736402 (6 worldwide citation)

A pre-determined concentration of stabilized, maturation-arrested porcine reticulocytes in a red blood cell base, useful as a reticulocyte control composition. The composition can be provided in the form of a concentrated reticulocyte composition, to be diluted to a desired final reticulocyte concen ...


5
Ralph T Francis, Alan M Johnson: Reticulocyte assay control. Research & Diagnostics Systems, Fredrikson & Byron P A, August 31, 1999: US05945340 (6 worldwide citation)

A pre-determined concentration of stabilized, maturation-arrested porcine reticulocytes in a red blood cell base, useful as a reticulocyte control composition. The composition can be provided in the form of a concentrated reticulocyte composition, to be diluted to a desired final reticulocyte concen ...


6
Ralph T Francis, Alan M Johnson: Method for making a reticulocyte assay control. Research & Diagnostic Systems, Fredrikson & Byron P A, January 12, 1999: US05858789 (5 worldwide citation)

A pre-determined concentration of stabilized, maturation-arrested porcine reticulocytes in a red blood cell base, useful as a reticulocyte control composition. The composition can be provided in the form of a concentrated reticulocyte composition, to be diluted to a desired final reticulocyte concen ...


7
Ralph T Francis, Qing Hong Zhao, Amy Desmith, B Nicholas Oray: Resorbable implant materials. Fredrikson & Byron Pa, June 3, 2004: US20040107006-A1

A non-crosslinked, decellularized and purified mammalian tissue (e.g., bovine pericardium) having particular use as an implantable resorbable material. The material is treated by alkylating its primary amine groups in a manner sufficient to reduce the antigenicity of the tissue, permitting the treat ...


8
Ralph T Francis, Qing Hong Zhao, Amy DeSmith, B Nicholas Oray: Resorbable implant materials. Philip M Goldman, Fredrikson & Byron PA, September 26, 2002: US20020138152-A1

A non-crosslinked, decellularized and purified mammalian tissue (e.g., bovine pericardium) having particular use as an implantable resorbable material. The material is treated by alkylating its primary amine groups in a manner sufficient to reduce the antigenicity of the tissue, permitting the treat ...


9
Ralph T Francis, Qing Hong Zhao, B Nicholas Oray, Anne E Metzger: Stent cover. Philip M Goldman, Fredrikson & Byron Pa, September 5, 2002: US20020123789-A1

A stent cover useful as a barrier between an expandable stent and the vascular surface. The cover provides an optimal combination of such properties as thickness, physical characteristics and biocompatability. The cover can be formed to and positioned upon the size and shape of the unexpanded stent, ...



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