Patents by Inventor Douglas R. Hoffman
Douglas R. Hoffman 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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Publication number: 20230277704Abstract: A disinfectant composition that contains a unique combination of a primary antiviral agent and a secondary antiviral agent is provided. More particularly, the primary antiviral agent includes a polyprotic acid having a low first acid dissociation constant and the secondary antiviral agent is selected from the group consisting of an anionic N-acyl compound, metal halide salt, amine compound, amine compound, aliphatic amine oxide, alkyl glycoside, alcohol ethoxylate, and combinations thereof. By selectively controlling the particular nature of each antiviral agent and their relative concentration, the present inventors have discovered that a synergistic affect can be achieved in which the disinfectant composition is capable of exhibiting an antiviral efficacy against non-enveloped viruses.Type: ApplicationFiled: April 28, 2023Publication date: September 7, 2023Inventors: Douglas R. Hoffman, Amy L. Vanden Heuvel, Jeremy D. Paulsen, Paige N. Anunson, Lisa M. Kroll, Corey T. Cunningham, David W. Koenig
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Publication number: 20210092949Abstract: A disinfectant composition that is capable of inactivating non-enveloped viruses as well as other microorganisms, such as gram negative and gram positive bacteria, fungi, parasites, enveloped viruses, etc., is provided. Through selective control over the nature of the acid(s) employed and the overall pH level, the present inventors have discovered that the composition can achieve rapid antiviral efficacy, particularly against non-enveloped viruses. Once applied to a surface (e.g., hard surface), the disinfectant composition forms a film that remains capable of providing residual antiviral activity. Notably, the present inventors have discovered that the use of a vinylpyrrolidone copolymer in combination with a polyquaternary ammonium polymer and cationic surfactant can have a synergistic effect on the stability of the film such that it can also achieve long-term, residual antiviral activity.Type: ApplicationFiled: December 4, 2020Publication date: April 1, 2021Inventors: Amy L. Vanden Heuvel, Douglas R. Hoffman, Jeremy D. Paulsen, Rebecca Vongsa, Paige N. Anunson, Lisa M. Kroll, Corey T. Cunningham, David W. Koenig
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Patent number: 10874100Abstract: A disinfectant composition that is capable of inactivating non-enveloped viruses as well as other microorganisms, such as gram negative and gram positive bacteria, fungi, parasites, enveloped viruses, etc., is provided. Through selective control over the nature of the acid(s) employed and the overall pH level, the present inventors have discovered that the composition can achieve rapid antiviral efficacy, particularly against non-enveloped viruses. Once applied to a surface (e.g., hard surface), the disinfectant composition forms a film that remains capable of providing residual antiviral activity. Notably, the present inventors have discovered that the use of a vinylpyrrolidone copolymer in combination with a polyquaternary ammonium polymer and cationic surfactant can have a synergistic effect on the stability of the film such that it can also achieve long-term, residual antiviral activity.Type: GrantFiled: July 27, 2015Date of Patent: December 29, 2020Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Amy L. Vanden Heuvel, Douglas R. Hoffman, Jeremy D. Paulsen, Rebecca Vongsa, Paige N. Anunson, Lisa M. Kroll, Corey T. Cunnington, David W. Koenig
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Patent number: 10104894Abstract: A composition may be applied to animate and inanimate surfaces to render such surfaces antimicrobial for as long as the composition remains on the surface. The composition contains at least one pathogen-associated virus that is self-regenerating so that a user need not take steps to regenerate the material. The virus is or viruses are contained within a polymer matrix. The polymer matrix has the ability to maintain a desired moisture content to support the regeneration of the virus(es). Various methods of using the composition include the coating of animate and inanimate surfaces to prevent bacterial, viral, and fungal infections.Type: GrantFiled: March 18, 2015Date of Patent: October 23, 2018Assignee: Kimberly-Clark Worldwide, Inc.Inventors: David W. Koenig, Douglas R. Hoffman, Cindy Korir-Morrison, Amy L. Vanden Heuvel
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Publication number: 20180200397Abstract: A disinfectant composition that contains a unique combination of a primary antiviral agent and a secondary antiviral agent is provided. More particularly, the primary antiviral agent includes a polyprotic acid having a low first acid dissociation constant and the secondary antiviral agent is selected from the group consisting of an anionic N-acyl compound, metal halide salt, amine compound, amine compound, aliphatic amine oxide, alkyl glycoside, alcohol ethoxylate, and combinations thereof. By selectively controlling the particular nature of each antiviral agent and their relative concentration, the present inventors have discovered that a synergistic affect can be achieved in which the disinfectant composition is capable of exhibiting an antiviral efficacy against non-enveloped viruses.Type: ApplicationFiled: July 27, 2015Publication date: July 19, 2018Inventors: Douglas R. Hoffman, Amy L. Vanden Heuvel, Jeremy D. Paulsen, Paige N. Anunson, Lisa M. Kroll, Corey T. Cunnington, David W. Koenig
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Publication number: 20180199567Abstract: A disinfectant composition that is capable of inactivating non-enveloped viruses as well as other microorganisms, such as gram negative and gram positive bacteria, fungi, parasites, enveloped viruses, etc., is provided. Through selective control over the nature of the acid(s) employed and the overall pH level, the present inventors have discovered that the composition can achieve rapid antiviral efficacy, particularly against non-enveloped viruses. Once applied to a surface (e.g., hard surface), the disinfectant composition forms a film that remains capable of providing residual antiviral activity. Notably, the present inventors have discovered that the use of a vinylpyrrolidone copolymer in combination with a polyquaternary ammonium polymer and cationic surfactant can have a synergistic effect on the stability of the film such that it can also achieve long-term, residual antiviral activity.Type: ApplicationFiled: July 27, 2015Publication date: July 19, 2018Inventors: Amy L. Vanden Heuvel, Douglas R. Hoffman, Jeremy D. Paulsen, Rebecca Vongsa, Paige N. Anunson, Lisa M. Kroll, Corey T. Cunnington, David W. Koenig
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Patent number: 9949477Abstract: The present invention relates to compositions having durable antimicrobial activity. The compositions include a carbonate/bicarbonate salt of a quaternary ammonium cation, an organic acid, hydrogen peroxide and a polymer. The polymer is selected from cationic amine polymer-epichlorohydrin adduct, cationic amine polymer-epichlorohydrin resin, poly(methacrylamidopropyltrimethylammonium) chloride, poly(bis(2-chloroethyl)ether-alt-1,3-bis(dimethylamino)propyl)urea, poly(diallyldimethylammonium) chloride, poly(t-butyl acrylate co-ethyl acrylate co-methacrylic acid), polyethylene oxide, polyquaternium-16, polyquaternium-22, polyquaternium-67 and mixtures thereof.Type: GrantFiled: December 30, 2010Date of Patent: April 24, 2018Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Corey T. Cunningham, Rebecca Ann Vongsa, Stacy A. Mundschau, David W. Koenig, Douglas R. Hoffman
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Patent number: 9931679Abstract: An antibacterial cleaning composition for hard surfaces is made from a flexible superabsorbent material and an antibacterial agent. The composition can be applied to various liquid and solid surface contaminants, including blood, vomit, fecal matter, urine, glass, food, etc. The composition may be applied to the contaminated hard surface by several methods including pouring, rolling, spraying or foaming. Once cured, the antimicrobial cleaning composition is removed from the surface, taking the contaminant along with it and leaving behind a clean surface.Type: GrantFiled: December 31, 2014Date of Patent: April 3, 2018Assignee: Kimberly-Clark Worldwide, Inc.Inventors: David J. Tyrrell, John Gavin MacDonald, Dave Allen Soerens, Paige Nicole Anunson, Douglas R. Hoffman
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Publication number: 20170172153Abstract: A composition may be applied to animate and inanimate surfaces to render such surfaces antimicrobial for as long as the composition remains on the surface. The composition contains at least one pathogen-associated virus that is self-regenerating so that a user need not take steps to regenerate the material. The virus is or viruses are contained within a polymer matrix. The polymer matrix has the ability to maintain a desired moisture content to support the regeneration of the virus(es). Various methods of using the composition include the coating of animate and inantimate surfaces to prevent bacterial, viral, and fungal infections.Type: ApplicationFiled: March 18, 2015Publication date: June 22, 2017Applicant: Kimberly-Clark Worldwide, Inc.Inventors: David W. Koenig, Douglas R. Hoffman, Cindy Korir-Morrison, Amy L. Vanden Heuvel
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Publication number: 20160325318Abstract: An antibacterial cleaning composition for hard surfaces is made from a flexible superabsorbent material and an antibacterial agent. The composition can be applied to various liquid and solid surface contaminants, including blood, vomit, fecal matter, urine, glass, food, etc. The composition may be applied to the contaminated hard surface by several methods including pouring, rolling, spraying or foaming. Once cured, the antimicrobial cleaning composition is removed from the surface, taking the contaminant along with it and leaving behind a clean surface.Type: ApplicationFiled: December 31, 2014Publication date: November 10, 2016Inventors: David J. TYRRELL, John Gavin MACDONALD, Dave Allen SOERENS, Paige Nicole ANUNSON, Douglas R. HOFFMAN
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Publication number: 20160051456Abstract: A moisturizing liquid liner composition comprising a hydrophobic moiety and an emulsifier is described. Further, a substrate comprising a barrier layer and a moisturizing liquid liner composition comprising a hydrophobic moiety and an emulsifier is described. The substrate may be incorporated into an article.Type: ApplicationFiled: August 27, 2015Publication date: February 25, 2016Applicant: DEB IP LIMITEDInventors: Anna HOWE, Dana ADKINS, Scott W. WENZEL, David William KOENIG, Douglas R. HOFFMAN
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Patent number: 9232790Abstract: Antimicrobial cleansing compositions are disclosed. The cleansing compositions include thin liquid/foaming compositions and gels. The antimicrobial cleansing compositions are effective antimicrobials and safe for everyday use.Type: GrantFiled: August 2, 2011Date of Patent: January 12, 2016Assignee: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Helen Kathleen Moen, Corey Thomas Cunningham, Douglas R. Hoffman, Scott W. Wenzel
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Publication number: 20150352033Abstract: Liquid formulations having anti-adherent properties are disclosed herein. The liquid anti-adherent formulation described herein acts to prevent the adherence of menses and/or fecal material to the skin in the labial and perianal regions during and after menstruation or defecation, respectively. The liquid anti-adherent formulation contains a carrier, a polymer selected from an anionic polymer, nonionic polymer, and combinations thereof. Anti-adherent formulation was found to be effective if a menses leave-on percentage as defined within the Menses Leave-On Percentage Test method described herein of less than 7.2% after two insults.Type: ApplicationFiled: August 19, 2015Publication date: December 10, 2015Inventors: Douglas R. Hoffman, Stacy A. Mundschau, Corey T. Cunningham, Dave A. Soerens
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Publication number: 20130287834Abstract: Liquid formulations having anti-adherent properties are disclosed herein. The liquid anti-adherent formulation described herein acts to prevent the adherence of menses and/or fecal material to the skin in the labial and perianal regions during and after menstruation or defecation, respectively. The liquid anti-adherent formulation contains a carrier, a polymer selected from a nonionic acrylate co-polymer, cationic acrylate co-polymer, and combinations thereof. Anti-adherent formulation is found to be effective if a menses leave-on percentage as defined within the Menses Leave-On Percentage Test method described herein was less than 6.2% after two insults.Type: ApplicationFiled: April 30, 2012Publication date: October 31, 2013Inventors: Douglas R. Hoffman, Corey T. Cunningham, Stacy A. Mundschau, David W. Koenig, Shaosheng Dong
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Publication number: 20130287724Abstract: Liquid formulations having anti-adherent properties are disclosed herein. The liquid anti-adherent formulation described herein acts to prevent the adherence of menses and/or fecal material to the skin in the labial and perianal regions during and after menstruation or defecation, respectively. The liquid anti-adherent formulation contains a carrier, a polymer selected from an anionic polymer, nonionic polymer, and combinations thereof. Anti-adherent formulation was found to be effective if a menses leave-on percentage as defined within the Menses Leave-On Percentage Test method described herein of less than 7.2% after two insults.Type: ApplicationFiled: April 30, 2012Publication date: October 31, 2013Inventors: Douglas R. Hoffman, Stacy A. Mundschau, Corey T. Cunningham, Dave A. Soerens
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Patent number: 8481480Abstract: Formulations having anti-adherent properties are disclosed herein. The anti-adherent formulation described herein acts to prevent the adherence of menses and/or fecal material to the skin in the labial and perianal regions during and after menstruation or defecation, respectively. The anti-adherent formulation contains a carrier, from about 0.1% by weight to about 10.0% by weight of a quaternary ammonium compound, and from about 0.5% by weight to about 10.0% by weight of a fatty alcohol. The anti-adherent formulation may be applied to the targeted surface either directly, in liquid form, such as by a spray bottle or similar packaging capable of delivering a liquid formulation in a relatively uniform amount over the full surface to be covered. Alternatively, the formulation may be applied to the targeted surface by a “wet” wipe or wiper.Type: GrantFiled: April 30, 2012Date of Patent: July 9, 2013Inventors: Uyen T. Lam, Kelly Laura Wolff, Corey T. Cunningham, Douglas R. Hoffman, Scott W. Wenzel
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Publication number: 20130035396Abstract: Antimicrobial cleansing compositions are disclosed. The cleansing compositions include thin liquid/foaming compositions and gels. The antimicrobial cleansing compositions are effective antimicrobials and safe for everyday use.Type: ApplicationFiled: August 2, 2011Publication date: February 7, 2013Applicant: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Helen Kathleen Moen, Corey Thomas Cunningham, Douglas R. Hoffman, Scott W. Wenzel
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Publication number: 20120171155Abstract: The present invention relates to compositions having durable antimicrobial activity. The compositions include a carbonate/bicarbonate salt of a quaternary ammonium cation, an organic acid, hydrogen peroxide and a polymer. The polymer is selected from cationic amine polymer-epichlorohydrin adduct, cationic amine polymer-epichlorohydrin resin, poly(methacrylamidopropyltrimethylammonium)chloride, poly(bis(2-chloroethyl)ether-alt-1,3-bis(dimethylamino)propyl)urea, poly(diallyldimethylammonium)chloride, poly(t-butyl acrylate co-ethyl acrylate co-methacrylic acid), polyethylene oxide, polyquaternium-16, polyquaternium-22, polyquaternium-67 and mixtures thereof.Type: ApplicationFiled: December 30, 2010Publication date: July 5, 2012Inventors: Corey T. Cunningham, Rebecca Ann Vongsa, Stacy A. Mundschau, David W. Koenig, Douglas R. Hoffman
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Publication number: 20110152925Abstract: Skin sealants are usually applied over skin preps to seal the skin and hold any remaining bacteria in place prior to surgical incisions. This sealant is generally left on the skin after surgery. This two step process is time consuming, as each layer must dry before the next one is applied. A skin preparation is provided that immobilizes at least 95 percent of bacteria on the skin and is essentially free of cyanoacrylate. The skin preparation has a fugitive solvent and may also have antimicrobial compounds like iodophors, biguanides, phenols, quaternary amines, antibiotics and metals. This skin preparation may be used without an additional skin sealant or incise applied over it prior to surgery.Type: ApplicationFiled: December 22, 2009Publication date: June 23, 2011Inventors: Phillip A. Schorr, Douglas R. Hoffman, Ilona F. Weart, Kaiyuan Yang
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Publication number: 20110135702Abstract: A cleaning medium or formulation that contains a sporicidal composition is described. The composition includes about 0.1-20% weight/weight of a germinant agent, about 0.01-75% w/w of an antimicrobial agent, in terms of dry or wet total weight, and which is admixed with water to generate a solution with a pH of 3.5-9.5. The composition can help trigger the germination of spores, in particular C. difficile, and subsequently deactivate or kill the spores. A means of applying the cleaning formulation in a medium and process for cleaning are also described.Type: ApplicationFiled: December 9, 2009Publication date: June 9, 2011Inventors: Douglas R. Hoffman, Aimin He, David W. Koenig, Andrea J. Smiltneek, DaeGun Kim, YoungSook Kim