1
Louis L Wood, Gary J Calton: Cryogel bandage containing therapeutic agent. SRCHEM Incorporated, William S Ramsey, November 9, 1993: US05260066 (77 worldwide citation)

A controlled-release bandage containing therapeutic agents in a poly(vinyl alcohol) cryogel is disclosed. The bandage may include particulate absorbants such as ion exchange resins and hydrophobic particles to further insure controlled and constant release of therapeutic agents. The bandage may also ...


2
Louis L Wood, Gary J Calton: Cryogel oral pharmaceutical composition containing therapeutic agent. SRCHEM Incorporated, William S Ramsey, February 22, 1994: US05288503 (77 worldwide citation)

An oral pharmaceutical composition comprising a hydrophobic resin or ion exchange resin which has a therapeutic agent bound thereto forming an agent-resin complex is disclosed. The complex is coated with a water-permeable diffusion barrier of poly(vinyl alcohol) polymer cryogel.


3
Gary J Calton, Louis L Wood: Copolymers of polyaspartic acid. Srchem Incorporated, William S Ramsey, October 18, 1994: US05357004 (28 worldwide citation)

Higher molecular weight copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition may be obtained by reacting maleic acid and ammonia in a stoichiometric excess, with a diamine or a triamine, at 120.degree.-350.degree. C., preferably 180.degree.-300.degree. C., and th ...


4
John B Cook, Louis L Wood, Gary J Calton: Odor reducing compositions. Calwood Chemical, William S Ramsey, October 6, 1998: US05817300 (27 worldwide citation)

Zirconium compounds reduce odors. Zirconium hydroxide and sulfated zirconium are especially efficient at reducing the odors of primary, secondary and tertiary amines or ammonia. Zirconium hydroxide and/or sulfated zirconium may be incorporated in pads which are the recipients of odoriferous waste ma ...


5
Carrington S Cobbs, Michael J Barton, Lin Peng, Animesh Goswami, Adrien P Malick, John P Hamman, Gary J Calton: Process for stereoselectively hydrolyzing, transesterifying or esterifying with immobilized isozyme of lipase from Candida rugosa. Rhone Poulenc Rorer, Cushman Darby & Cushman, April 28, 1992: US05108916 (22 worldwide citation)

An immobilized isozyme of Lipase MY or AY from Candida rugosa is used for stereoselectively hydrolyzing racemic mixtures of esters of 2-substituted acids, other than 2-halo propionic acids, transesterifying esters or acids or esterify acids or alcohols, at high enantiomeric excess, in an organic sol ...


6
Louis L Wood, Gary J Calton: Decolorizing polyaspartic acid polymers. SRCHEM Incorporated, William S Ramsey, March 8, 1994: US05292864 (22 worldwide citation)

Solutions of polymers of aspartic acid or its amine copolymers prepared by thermal condensation are reacted with a decolorizing agent selected from the group consisting of hypochlorfte, chlorine, chlorine dioxide, hydrogen peroxide, a peroxycarboxylate or ozone, sufficient in strength to effect the ...


7
Louis L Wood, Gary J Calton: Copolymers of polyaspartic acid and polycarboxylic acids and polyamines. Connolly & Hutz, April 18, 1995: US05408028 (20 worldwide citation)

Copolymers of polyaspartic acid which are suitable for the inhibition of scale deposition were obtained by reacting maleic acid, an additional polycarboxylic acid and ammonia in a stoichiometric excess, at 120.degree.-350.degree. C., preferably 180.degree.-300.degree. C., to provide copolymers of po ...


8
Louis L Wood, Gary J Calton: Immobilized cells for preparing phenylalanine. Purification Engineering, Cushman Darby & Cushman, July 15, 1986: US04600692 (19 worldwide citation)

A process is disclosed for preparing phenylalanine which comprises contacting phenylpyruvic acid or phenylpyruvate with immobilized whole cells having transaminase activity in the presence of an amine donor. The cells are preferably immobilized with a polyazetidine polymer. Ruptured or permeabilized ...


9
Louis L Wood, Gary J Calton: Immobilized microbial cell composition for making L-aspartic acid. Purification Engineering, Cushman Darby & Cushman, March 13, 1984: US04436813 (18 worldwide citation)

Microbial cells having L-aspartase activity are immobilized for producing L-aspartic acid. The cells are immobilized by mixing the cells with a curable prepolymer material and curing the prepolymer material to form a crosslinked polymer. Suitable prepolymer materials are polyazetidine prepolymers, c ...


10
Sidney R Siemer, Louis L Wood, Gary J Calton: Application of agricultural polyammonium acrylate or polyacrylamide hydrogels. Aqua Source, William S Ramsey, February 9, 1993: US05185024 (13 worldwide citation)

This invention discloses methods for manufacture and use of poly(ammonium acrylate) and polyacrylamide hydrogels in agricultural applications. Such hydrogels are applied to the soil or the plants by spraying. Spraying is advantageous over other methods of application, such as mixing with soil and br ...