Patents by Inventor Francis L. Richter

Francis L. Richter 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).

  • Patent number: 6197321
    Abstract: A drain sanitizing article (9) for reducing microbiological activity in drain runoff areas having a housing (10), the housing having an inner wall (16) defining an inner opening (18) in the housing, an outer wall (12), and a bottom wall (14) defining a central cavity (15) in the housing (10), a tear strip (20) for destructibly removing the housing outer wall and a portion of the bottom wall (14), a handle (30) spanning the inner opening (18) of the housing (10) and joined to the inner wall (16) of said housing (10); and a chemical sanitizing agent (40).
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: March 6, 2001
    Assignee: Ecolab, Inc.
    Inventors: Francis L. Richter, James Wilson, Daniel E. Pedersen
  • Patent number: 6197739
    Abstract: Compositions for use as soil removing agents in the food processing industry are disclosed. Food soiled surfaces in food manufacturing and preparation areas can be cleaned. The compositions are manufactured in the form of a concentrate which is diluted with water and used. The cleaning materials are made in a two part system which are diluted with a diluent source and mixed prior to use. The products contain high quality cleaning compositions and use a variety of active ingredients. The preferred materials, in a two part system contain detergent compositions, enzymes that degrade food compositions, surfactants, low alkaline builders, water conditioning (softening) agents, and optionally a variety of formulary adjuvants depending on product form.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: March 6, 2001
    Assignee: Ecolab Inc.
    Inventors: Thomas R. Oakes, Kristine K. Wick, Bruce R. Cords, Sandra L. Bull, Francis L. Richter
  • Patent number: 5858117
    Abstract: Compositions for use as soil removing agents in the food processing industry are disclosed. Food soiled surfaces in food manufacturing and preparation areas can be cleaned. The compositions are manufactured in the form of a concentrate which is diluted with water and used. The cleaning materials are made in a two part system which are diluted with a diluent source and mixed prior to use. The products contain high quality cleaning compositions and use a variety of active ingredients. The preferred materials, in a two part system contain detergent compositions, enzymes that degrade food compositions, surfactants, low alkaline builders, water conditioning (softening) agents, and optionally a variety of formulary adjuvants depending on product form.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: January 12, 1999
    Assignee: Ecolab Inc.
    Inventors: Thomas R. Oakes, Kristine K. Wick, Bruce R. Cords, Sandra L. Bull, Francis L. Richter
  • Patent number: 5622708
    Abstract: 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: Grant
    Filed: March 9, 1993
    Date of Patent: April 22, 1997
    Assignee: Ecolab Inc.
    Inventors: Francis L. Richter, Duane J. Reinhardt, Paula J. D. Carlson
  • Patent number: 5436008
    Abstract: 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: Grant
    Filed: August 5, 1993
    Date of Patent: July 25, 1995
    Assignee: Ecolab Inc.
    Inventors: Francis L. Richter, Duane J. Reinhardt
  • Patent number: 5419908
    Abstract: The invention generally comprises a composition capable of sanitizing and disinfecting antimicrobial efficacy while also being ingestible as a food additive residue by humans and mammals. Specifically, the microbicidal composition of the invention generally comprises a carrier and an antimicrobial agent, wherein the antimicrobial agent generally comprises a C.sub.5 to C.sub.14 unsaturated monocarboxylic acid such as sorbic acid, in combination with an aromatic carboxylic acid such as benzoic acid. The antimicrobial composition of the invention is useful for both hard and soft surface sanitizing in environments such as farms, milk and food processing, fluid milk operations, institutional food preparation and serving areas, health care and child care facilities, as well as any other number of contact sensitive environments which require compositions having high antimicrobial efficacy and which will not contaminate food stocks and which pose no danger to humans.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: May 30, 1995
    Assignee: Ecolab Inc.
    Inventors: Francis L. Richter, Daniel E. Pedersen, May J. Biedscheid, Dale L. Fredell
  • Patent number: 5336500
    Abstract: The invention generally comprises a composition capable of sanitizing and disinfecting antimicrobial efficacy while also being ingestible as a food additive residue by humans and mammals. Specifically, the microbicidal composition of the invention generally comprises a carrier and an antimicrobial agent, wherein the antimicrobial agent generally comprises a C.sub.5 to C.sub.4 unsaturated monocarboxylic acid such as sorbic acid, in combination with an aromatic carboxylic acid such as benzoic acid. The antimicrobial composition of the invention is useful for both hard and soft surface sanitizing in environments such as farms, milk and food processing, fluid milk operations, institutional food preparation and serving areas, health care and child care facilities, as well as any other number of contact sensitive environments which require compositions having high antimicrobial efficacy and which will not contaminate food stocks and which pose no danger to humans.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: August 9, 1994
    Assignee: Ecolab Inc.
    Inventors: Francis L. Richter, Daniel E. Pedersen, May J. Biedscheid, Dale L. Fredell
  • Patent number: 5312624
    Abstract: A drain sanitizing article (9) for reducing microbiological activity in drain runoff areas having a housing (10), the housing having an inner wall (16) defining an inner opening (18) in the housing, an outer wall (12), and a bottom wall (14) defining a central cavity (15) in the housing (10), a tear strip (20) for destructibly removing the housing outer wall and a portion of the bottom wall (14), a handle (30) spanning the inner opening (18) of the housing (10) and joined to the inner wall (16) of said housing (10); and a chemical sanitizing agent (40).
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: May 17, 1994
    Assignee: Ecolab Inc.
    Inventors: Francis L. Richter, James Wilson, Daniel E. Pedersen
  • Patent number: 5234719
    Abstract: 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: Grant
    Filed: December 11, 1992
    Date of Patent: August 10, 1993
    Assignee: Ecolab Inc.
    Inventors: Francis L. Richter, Daniel E. Pedersen, Dale L. Fredell, Duane J. Reinhardt
  • Patent number: 5019346
    Abstract: A drain sanitizing article (9) for reducing microbiological activity in drain runoff areas having a housing (10), the housing having an inner wall (16) defining an inner opening (18) in the housing, an outer wall (12), and a bottom wall (14) defining a central cavity (15) in the housing (10), a tear strip (20) for destructibly removing the housing outer wall and a portion of the bottom wall (14), a handle (30) spanning the inner opening (18) of the housing (10) and joined to the inner wall (16) of said housing (10); and a chemical sanitizing agent (40).
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: May 28, 1991
    Assignee: Ecolab Inc.
    Inventors: Francis L. Richter, James Wilson, Daniel E. Pedersen