Patents by Inventor Duane J. Reinhardt
Duane J. Reinhardt 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: 7056536Abstract: A non-corrosive, liquid, aqueous sterilant composition (as a concentrate or ready-to-use solution), which may be provided in two parts which are mixed prior to application, may comprise a peracid (in an equilibrium solution with an underlying carboxylic acid or mixtures of alkyl carboxylic acids and peroxide), inorganic buffering agent, and water. It has been found that the use of this simplified system, even in the absence of additional components which have been thought to be desirable for sterilants used on metal parts (e.g.Type: GrantFiled: March 10, 2003Date of Patent: June 6, 2006Assignee: Ecolab Inc.Inventors: Francis L. Richter, Duane J. Reinhardt, Sally K. Swart
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Patent number: 6991685Abstract: The invention relates to a method of low temperature cleaning and applying an antimicrobial treatment to food and beverage plant equipment. In addition, the method includes carbon dioxide compatible chemistry. The method may be achieved through a multi-step method.Type: GrantFiled: June 7, 2005Date of Patent: January 31, 2006Assignee: Ecolab Inc.Inventors: Joseph I. Kravitz, Francis L. Richter, Duane J. Reinhardt, Gerald K. Wichmann
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Patent number: 6953507Abstract: The invention relates to a method of low temperature cleaning and applying an antimicrobial treatment to food and beverage plant equipment. In addition, the method includes carbon dioxide compatible chemistry. The method may be achieved through a multi-step method.Type: GrantFiled: March 21, 2003Date of Patent: October 11, 2005Assignee: Ecolab Inc.Inventors: Joseph I. Kravitz, Francis L. Richter, Duane J. Reinhardt, Gerald K. Wichmann
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Publication number: 20040182425Abstract: The invention relates to a method of low temperature cleaning and applying an antimicrobial treatment to food and beverage plant equipment. In addition, the method includes carbon dioxide compatible chemistry. The method may be achieved through a multi-step method.Type: ApplicationFiled: March 21, 2003Publication date: September 23, 2004Applicant: Ecolab Inc.Inventors: Joseph I. Kravitz, Francis L. Richter, Duane J. Reinhardt, Gerald K. Wichmann
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Publication number: 20030185899Abstract: A non-corrosive, liquid, aqueous sterilant composition (as a concentrate or ready-to-use solution), which may be provided in two parts which are mixed prior to application, may comprise a peracid (in an equilibrium solution with an underlying carboxylic acid or mixtures of alkyl carboxylic acids and peroxide), inorganic buffering agent, and water. It has been found that the use of this simplified system, even in the absence of additional components which have been thought to be desirable for sterilants used on metal parts (e.g.Type: ApplicationFiled: March 10, 2003Publication date: October 2, 2003Applicant: Ecolab Inc.Inventors: Francis L. Richter, Duane J. Reinhardt, Sally K. Swart
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Patent number: 6627657Abstract: Compositions having antimicrobial activity against a variety of microorganisms, including vegetative bacteria, bacterial spores, fungi, and fungal spores are particularly useful for microbiocidal treatments of a variety of substances. More specifically, compositions have antibmicrobial activity against microorganisms of the Bacillus cereus group such as Bacillus cereus, Bacillus mycoides, Bacillus anthracis, and Bacillus thuringiensis are particularly useful. Compositions including hydrogen peroxide, a carboxylic acid, and a peroxycarboxylic acid in which the weight ratio of the peroxycarboxylic acid to the hydrogen peroxide is at least 4:1 are effective against microorganisms, particularly bacterial spores. Such compositions include a reduced amount of hydrogen peroxide relative to the amount of peroxycarboxylic acid as compared to conventional compositions. Compositions can also include a quaternary ammonium compound, a stabilizing agent, a surfactant, a hydrotrope, or other additives.Type: GrantFiled: March 22, 2000Date of Patent: September 30, 2003Assignee: Ecolab Inc.Inventors: John D. Hilgren, Francis L. Richter, Duane J. Reinhardt, Joy A. Salverda, Christina L. Rahm
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Patent number: 6589565Abstract: A non-corrosive, liquid, aqueous sterilant composition (as a concentrate or ready-to-use solution), which may be provided in two parts which are mixed prior to application, may comprise a peracid (in an equilibrium solution with an underlying carboxylic acid or mixtures of alkyl carboxylic acids and peroxide), inorganic buffering agent, and water. It has been found that the use of this simplified system, even in the absence of additional components which have been thought to be desirable for sterilants used on metal parts (e.g.Type: GrantFiled: November 22, 1999Date of Patent: July 8, 2003Assignee: Ecolab Inc.Inventors: Francis L. Richter, Duane J. Reinhardt, Sally K. Swart
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Patent number: 5622708Abstract: The invention is an erodible antimicrobial caulk composition having a sanitizer and a hardener which controls the consistency and the dissolution rate of the composition once subjected to an aqueous flow. Also disclosed is a method of preparing the erodible caulk composition. These caulks are useful in institutional food preparation and food serving environments including restaurants, hospitals, day care facilities, nursing homes, and the like as well as institutional food harvesting and processing environments including food and beverage processing plants, dairy farms and dairy plant operations, red meat, poultry and fish preparation and processing environments, and the like, including post process food transport and distribution channel environments such as trucks and grocery or foodstuff retailers.Type: GrantFiled: March 9, 1993Date of Patent: April 22, 1997Assignee: Ecolab Inc.Inventors: Francis L. Richter, Duane J. Reinhardt, Paula J. D. Carlson
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Patent number: 5436008Abstract: This invention is a microbicidal and tuberculocidal composition comprising a major portion of carrier and an effective sanitizing amount of octanoic acid, or octanoic acid derivatives, and a sulfur containing compound. Optionally, the invention may also comprise any variety of formulatory ingredient options or application adjuvants. The invention comprises concentrate compositions and methods of sanitizing and disinfecting using the antimicrobial composition of the invention.Type: GrantFiled: August 5, 1993Date of Patent: July 25, 1995Assignee: Ecolab Inc.Inventors: Francis L. Richter, Duane J. Reinhardt
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Patent number: 5234719Abstract: A food additive microbicidal composition consisting essentially of a major portion of carrier and an effective sanitizing amount of octanoic acid. Optionally, the invention may also consist essentially of any variety of formulatory ingredient options or application adjuvants. The invention comprises concentrate compositions and methods of sanitizing and disinfecting using the antimicrobial composition of the invention.Type: GrantFiled: December 11, 1992Date of Patent: August 10, 1993Assignee: Ecolab Inc.Inventors: Francis L. Richter, Daniel E. Pedersen, Dale L. Fredell, Duane J. Reinhardt