1
Paul A Armond, Peter M Orr: Protogyny in Zea mays. Dekalb Pfizer Genetics, Charles J Knuth, Peter C Richardson, Robert F Sheyka, June 30, 1987: US04677246 (662 worldwide citation)

Novel protogynous Zea mays plants are disclosed, including a novel protogynous inbred line, LALGI. Also disclosed are a process to produce such Zea mays plants and hybrids resulting from crossing such plants with other inbred lines such as Iowa Stiff Stalk Synthetic Lines.


2
Tassilo Bonzel: Dilatation catheter. Charles J Knuth, Peter C Richardson, Lawrence C Akers, August 9, 1988: US04762129 (594 worldwide citation)

A dilatation catheter, in particular for expanding constrictions in coronary vessels, includes a balloon (2) capable of being enlarged by injecting a fluid through a tube (3). The tube (3) is arranged laterally offset from a segment of flexible tubing (7) by which a passage (8) for a guide wire (1) ...


3
Arthur E Ellison, Rocco R Borzone: Arched bridge staple. Pfizer Hospital Products Group, Charles J Knuth, Peter C Richardson, Lorraine M Donaldson, February 18, 1986: US04570623 (370 worldwide citation)

A bone staple for attaching tubular shaped soft tissue to bone, in which the transverse bridge of the staple has teeth on its underside to grip the tissue and is arch shaped so that the center of the bridge is above the bone surface when the staple legs are driven fully into a bone.


4
Thomas A Silvestrini, Joseph E Laptewicz Jr: Triaxially-braided fabric prosthesis. Pfizer Hospital Products Group, Charles J Knuth, Peter C Richardson, Lawrence C Akers, September 9, 1986: US04610688 (285 worldwide citation)

A novel prosthesis for use in repairing or replacing soft tissue is disclosed, which comprises a triaxially-braided fabric element having interwoven first, second and third sets of fibers, with the fibers of the second and third sets being oriented at substantially the same acute braiding angle with ...


5
Michael W Chapman, Charles C Edwards, Dana C Mears: Modular femoral fixation system. Pfizer Hospital Products Group, Charles J Knuth, Peter C Richardson, Lawrence C Akers, August 20, 1991: US05041114 (233 worldwide citation)

A modular femoral internal implant system for use in the treatment of femoral disorders resulting from injury, disease or congenital defect includes at least three interconnectable components: 1) an elongated epiphyseal/metaphyseal implant, 2) an intramedullary rod and 3) an angled side plate having ...


6
Rocco R Borzone: Soft tissue retainer for use with bone implants, especially bone staples. Howmedica, Francis X Murphy, Charles J Knuth, Lawrence C Akers, July 14, 1981: US04278091 (206 worldwide citation)

A novel combination of a bone implant, e.g. a bone staple, and a tissue retention element in sliding relation therewith is disclosed. The tissue retention element is provided with a multiplicity of teeth capable of piercing and holding in place adjacent soft tissue when the implant is driven into th ...


7
Michael W Chapman, Charles C Edwards, Dana C Mears: Modular femoral fixation system. Pfizer Hospital Products Group, Charles J Knuth, Peter C Richardson, Lawrence C Akers, October 11, 1988: US04776330 (184 worldwide citation)

A modular femoral internal implant system for use in the treatment of femoral disorders resulting from injury, disease or congenital defect includes at least three interconnectable components: (1) an elongated epiphyseal/metaphyseal implant, (2) an intramedullary rod and (3) an angled side plate hav ...


8
Eugen Hofmann: Method for opening constricted regions in the cardiovascular system. Schneider Shiley, Charles J Knuth, Peter C Richardson, Lawrence C Akers, November 29, 1988: US04787388 (163 worldwide citation)

A catheter for opening constricted regions in the cardiovascular system includes an expandable dilatation zone comprising three dilatation elements arranged around a support tube. The dilatation elements are of tubular configuration, and each communicates at one end with a passage in the support tub ...


9
Robert V Kenna: Acetabulum sizer and drill guide. Howmedica, Charles J Knuth, Peter C Richardson, Harold W Ordway, July 16, 1985: US04528980 (154 worldwide citation)

An acetabulum sizer and drill guide for use in implanting an acetabular cup prosthesis comprises a substantially hemispherical shell having an outside surface that generally conforms to the outside surface of the prosthesis to be fitted into a prepared acetabulum. Viewing ports in the shell enable v ...


10
Louis Seiler Jr, Robert F Rosenbluth: Method of preparing a vascular graft prosthesis. Shiley Incorporated, Charles J Knuth, Peter C Richardson, Harold W Ordway, March 3, 1987: US04647416 (150 worldwide citation)

A ribbed, porous tube suitable for use as a vascular graft prosthesis is prepared by scoring a stretched or unstretched tube of PTFE, stretching the tube at 200.degree.-320.degree. C. to develop the desired porosity, and heat setting the scored, stretched tube at 327.degree.-450.degree. C. while res ...