Patents by Inventor Mark L. Zollinger
Mark L. Zollinger 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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Patent number: 7803899Abstract: Various methods are described for preparing dry water-soluble polymers with reduced organic impurity content by combining water-soluble polymer in water with at least one dry polar solvent to form a mixture that separates into a first layer comprising a majority of the solvent and water and a second layer comprising a majority of the polymer, then separating the layers and drying the second layer to obtain a solid comprising the water-soluble polymer. Further, or solid polymer products having reduced organic impurity levels and/or moisture content are also described.Type: GrantFiled: September 27, 2006Date of Patent: September 28, 2010Assignee: Buckman Laboratories International, Inc.Inventors: Mark L. Zollinger, James Andrew Ward
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Patent number: 7157017Abstract: The invention relates to control fungal growth on tanned hides, using cyanodithiocarbimates of formula (I): X is a halogen; R is a substituted or unsubstituted C1–C14 alkyl group, a substituted or unsubstituted C2–C14 alkenyl group, a substituted or unsubstituted C2–C14 alkynyl group, a substituted or unsubstituted group defined by Y—Ar—(CH2)m— or by Z—(CH2)n—; Ar is a substituted or unsubstituted aryl group selected from phenyl, or naphthyl; Y is H, halogen, NO2, R1, R1O, R1R2N; Z is NC, R1O, R1OC(O), R1OCH2CH2(OCH2CH2)p m ranges from 0 to 3; n ranges from 0 to 3; p ranges from 0 to 3; and R1 and R2 are independently H, substituted or unsubstituted C1–C5 alkyl.Type: GrantFiled: November 26, 2003Date of Patent: January 2, 2007Assignee: Buckman Laboratories International, Inc.Inventors: Joseph G. E. Fenyes, Thomas E. McNeel, Stephen D. Bryant, Marilyn S. Whittemore, Zoltan G. Csuros, Mark L. Zollinger, Robert H. Miller, Naim B. Miguel
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Patent number: 6211172Abstract: The present invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one sulfonamide to inhibit bacterial adhesion to the submergible surface. The present invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one sulfonamide to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the fouling organisms. The sulfonamide used in the method of the invention has the following formula: The present invention also relates to a composition containing the sulfonamides and useable in the above methods. The compositions comprise at least one sulfonamide in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.Type: GrantFiled: April 26, 1999Date of Patent: April 3, 2001Assignee: Buckman Laboratories International, Inc.Inventors: Mark L. Zollinger, Daniel E. Glover, Marilyn S. Whittemore, Stephen D. Bryant
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Patent number: 6075022Abstract: The present invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one thiourea to inhibit bacterial adhesion to the submergible surface. The present invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one thiourea to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the bactaria. The thiourea used in the method of the invention has the following formula a compound of the formula: The present invention also relates to compositions containing thiourea compounds and useable in the above methods. The compositions comprise at least one thiourea in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.Type: GrantFiled: September 29, 1995Date of Patent: June 13, 2000Assignee: Buckman Laboratories International Inc.Inventors: Mark L. Zollinger, Stephen D. Bryant
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Patent number: 6030971Abstract: The present invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one amide to inhibit bacterial adhesion to the submergible surface. The present invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one amide to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the bacteria. The amide used in the method of the invention has the following formula: ##STR1## The present invention also relates to compositions containing amides and useable in the above methods. The compositions comprise at least one amide in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.Type: GrantFiled: September 29, 1998Date of Patent: February 29, 2000Assignee: Buckman Laboratories International, Inc.Inventors: Marilyn S. Whittemore, Daniel E. Glover, Mark L. Zollinger, Stephen D. Bryant
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Patent number: 5869655Abstract: A diamine useful as a catalyst for the polymerization of urethane. A method of making the catalyst comprises reacting a spiro quaternary amine with a secondary amine. The spiro quaternary amine is also useful as an antimicrobial agent.Type: GrantFiled: November 5, 1993Date of Patent: February 9, 1999Assignee: Buckman Laboratories International, Inc.Inventors: Wallace E. Puckett, Mark L. Zollinger
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Patent number: 5817696Abstract: The present invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one oxime ester to inhibit bacterial adhesion to the submergible surface. The present invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one oxime ester to inhibit bacteria from adhering to a submerged surface within the aqueous system.. This method effectively controls biofouling without substantially killing the bacteria. The oxime ester used in the method of the invention has the following formula: ##STR1## The present invention also relates to compositions containing oxime esters and useable in the above methods. The compositions comprise at least one oxime ester in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.Type: GrantFiled: September 29, 1995Date of Patent: October 6, 1998Assignee: Buckman Laboratories International, Inc.Inventors: Mark L. Zollinger, Stephen D. Bryant
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Patent number: 5814668Abstract: The present invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one amide to inhibit bacterial adhesion to the submergible surface. The present invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one amide to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the bacteria. The amide used in the method of the invention has the following formula: ##STR1## The present invention also relates to compositions containing amides and useable in the above methods. The compositions comprise at least one amide in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.Type: GrantFiled: September 29, 1995Date of Patent: September 29, 1998Assignee: Buckman Laboratories International Inc.Inventors: Marilyn S. Whittemore, Daniel E. Glover, Mark L. Zollinger, Stephen D. Bryant
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Patent number: 5703131Abstract: A method for the detoxification of a mustard gas by reaction with a bis-tertiary diamine resulting in quaternary ammonium ionene polymers. Sulfur-containing quaternary ammonium ionene polymers which are useful as microbicides for controlling the growth of microorganisms in aqueous systems and on surfaces, as well as for inhibiting slime formation in aqueous systems and biocidal compositions contain effective amounts of the sulfur-containing quaternary ammonium ionene polymers.Type: GrantFiled: September 18, 1995Date of Patent: December 30, 1997Assignee: Buckman Laboratories International Inc.Inventors: Wallace E. Puckett, Mark L. Zollinger, Fernando Del Corral
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Patent number: 5401881Abstract: Sulfur-containing quaternary ammonium ionene polymers which are useful as microbicides for controlling the growth of microorganisms in aqueous systems and on surfaces, as well as for inhibiting slime formation in aqueous systems and biocidal compositions containing effective amounts of the sulfur-containing quaternary ammonium ionene polymers.Type: GrantFiled: August 12, 1992Date of Patent: March 28, 1995Assignee: Buckman Laboratories International, Inc.Inventors: Wallace E. Puckett, Mark L. Zollinger, Fernando D. Corral
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Patent number: 5387717Abstract: A method for the detoxification of a mustard gas by reaction with a bis-tertiary diamine resulting in quaternary ammonium ionene polymers. Sulfur-containing quaternary ammonium ionene polymers which are useful as microbicides for controlling the growth of microorganisms in aqueous systems and on surfaces, as well as for inhibiting slime formation in aqueous systems and biocidal compositions contain effective amounts of the sulfur-containing quaternary ammonium ionene polymers.Type: GrantFiled: December 18, 1992Date of Patent: February 7, 1995Assignee: Buckman Laboratories International, Inc.Inventors: Wallace E. Puckett, Mark L. Zollinger, Fernando D. Corral
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Patent number: 5268470Abstract: A diamine useful as a catalyst for the polymerization of urethane. A method of making the catalyst comprises reacting a spiro quaternary amine with a secondary amine. The spiro quaternary amine is also useful as an antimicrobial agent.Type: GrantFiled: July 12, 1991Date of Patent: December 7, 1993Assignee: Buckman Laboratories Internation, Inc.Inventors: Wallace E. Puckett, Mark L. Zollinger