1
Randal M Wenthold, Robert T Hall II, Robert G Andrus, Paul D Brinda, Louis C Cosentino, Robert F Reggin, Daniel T Pigott: Hollow fiber membranes and method of manufacture. Minntech Corporation, Barbara A Wrigley, June 9, 1998: US05762798 (88 worldwide citation)

An asymmetrical, microporous, hollow fiber membrane is made from a polymeric dope mixture of polysulfone and polyvinyl pyrrolidone dissolved in an aprotic solvent. The physical morphology of the hollow fiber membrane, i.e., the asymmetric microporous wall, is rapidly formed by passing the polymeric ...


2
Robert T Hall II, Bradley K Onstad, Daniel B Carlsen: Room temperature sterilant for medical devices. Minntech Corporation, Cushman Darby & Cushman IP Group of Pillsbury Madison & Sutro, November 24, 1998: US05840343 (76 worldwide citation)

Provided is an anti-microbial composition containing an ester of formic acid, an oxidizer, performic acid and water. Also provided is a premix for making the anti-microbial composition having two parts. One part contains the ester of formic acid and a second part contains the oxidizer. Another metho ...


3
Louis C Cosentino, Walter B Jansen, Robert T Hall II, Rosario M Marino, Kimberly L Hall: Stable, anticorrosive peracetic/peroxide sterilant. Minntech Corporation, Barbara A Wrigley, Amelia A Buharin, April 16, 1996: US05508046 (67 worldwide citation)

Stable microbicides comprising hydrogen peroxide, peracetic acid, acetic acid and purified water substantially free of contaminants, sequestrants or stabilizers and having anticorrosive properties for metals used in surgical and dental instruments is disclosed.


4
Robert T Hall II, Bradley K Onstad: Room Temperature sterilant. Minntech Corporation, Cushman Darby & Cushman IP Group of Pillsbury Madison & Sutro, April 1, 1997: US05616616 (53 worldwide citation)

Provided is an anti-microbial composition containing an ester of formic acid, an oxidizer, performic acid and water. Also provided is a premix for making the anti-microbial composition having two parts. One part contains the ester of formic acid and a second part contains the oxidizer. Another metho ...


5
Robert T Hall II, Bradley K Onstad: Method for sterilizing medical devices utilizing a room temperature sterilant. Minntech Corporation, Barbara A Wrigley, Amelia A Buharin, December 31, 1996: US05589507 (38 worldwide citation)

Provided is an anti-microbial composition containing an ester of formic acid, an oxidizer, performic acid and water. Also provided is a premix for making the anti-microbial composition having two parts. One part contains the ester of formic acid and a second part contains the oxidizer. Another metho ...


6
Randal M Wenthold, Robert T Hall II, Robert G Andrus, Louis C Cosentino: Hollow fiber membranes and method of manufacture. Minntech Corporation, Barbara A Wrigley, November 4, 1997: US05683584 (33 worldwide citation)

An asymmetric, microporous hollow fiber membrane comprising a polyimide is disclosed. The hollow fiber membrane is chemically inert to aqueous solutions and/or blood, is immediately rewettable after repeated steam and chemical sterilizations, has superior clearance, sieving, and water permeability c ...


7
Robert T Hall II, Bradley K Onstad: Premix for room temperature sterilant. Minntech Corporation, Barbara A Wrigley, June 3, 1997: US05635195 (27 worldwide citation)

Provided is an anti-microbial composition containing an ester of formic acid, an oxidizer, performic acid and water. Also provided is a premix for making the anti-microbial composition having two parts. One part contains the ester of formic acid and a second part contains the oxidizer. Another metho ...


8
Robert T Hall II, Jo Ann B Maltais, Louis C Cosentino: Anticorrosive microbicide. Minntech Corporation, Barbara A Wrigley, September 6, 1994: US05344652 (25 worldwide citation)

A stable, shippable microbicide solution, having improved anticorrosive properties comprising a two part system, the first part consists of a mixture of acetic acid, hydrogen peroxide, peracetic acid, and water. This is referred to for brevity as a peroxide/peracid solution. The second consists of w ...


9
Daniel B Carlsen, Robert G Andrus, Robert T Hall II: Dialysate filter including an asymmetric microporous, hollow fiber membrane incorporating a polyimide. Minntech Corporation, Barbara A Wrigley, Amelia A Buharin, February 25, 1997: US05605627 (25 worldwide citation)

A dialysate filter including asymmetric, microporous, hollow fiber membranes incorporating a polyimide. The dialysate filter connects to the dialysis machine immediately before the dialyzer ensuring complete filtration of the dialysate, easy visual inspection, quick installation and removal, and eas ...


10
Divaker B Kenkare, Robert T Hall II, John C Carson Jr: Two chambered mixing container. Colgate Palmolive Company, Kenneth A Koch, Herbert S Sylvester, Murray M Grill, September 26, 1978: US04116354 (9 worldwide citation)

A mixing container comprising first and second cylindrical containers telescopically arranged. One form of the invention includes an upwardly extending channel in the side walls of the upper container together with an upper opening therein for permitting mixing of ingredients. Another form of the in ...