Patents by Inventor Donald Lapham
Donald Lapham 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: 20180271090Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.Type: ApplicationFiled: May 31, 2018Publication date: September 27, 2018Applicant: PeroxyChem LLCInventors: John M. ROVISON, Ricky MITTIGA, Donald LAPHAM, Weidong AN
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Patent number: 9986737Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.Type: GrantFiled: March 4, 2016Date of Patent: June 5, 2018Assignee: PEROXYCHEM LLCInventors: John M. Rovison, Ricky Mittiga, Donald Lapham, Weidong An
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Publication number: 20160345576Abstract: The invention relates to anti-microbial compositons useful against a wide range of microoganisms undesirable on a wide variety of materials, including food, food contact and non-food contact surfaces, and surfaces in industrial, recreational, health care, and other institutional environments. More particularly, the anit-microbial compositions comprise peracetic acid in combination with a)citric acid or a salt and b) salicyclic acid or a slat in aqueous solution.Type: ApplicationFiled: May 31, 2016Publication date: December 1, 2016Applicant: PeroxyChem LLCInventors: John M. Rovison, Donald Lapham, Shibu Abraham, Mary Homan
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Publication number: 20160183522Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.Type: ApplicationFiled: March 4, 2016Publication date: June 30, 2016Applicant: PeroxyChem LLCInventors: John M. ROVISON, Ricky MITTIGA, Donald LAPHAM, Weidong AN
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Patent number: 9351488Abstract: The invention relates to anti-microbial compositions useful against a wide range of microorganisms undesirable on a wide variety of materials, including food, food contact and non-food contact surfaces, and surfaces in industrial, recreational, health care, and other institutional environments. More particularly, the anti-microbial compositions comprise peracetic acid in combination with a) citric acid or a salt and b) salicylic acid or a salt in aqueous solution.Type: GrantFiled: December 20, 2007Date of Patent: May 31, 2016Assignee: PEROXYCHEM LLCInventors: John M. Rovison, Donald Lapham, Shibu Abraham, Mary Homan
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Patent number: 9295744Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.Type: GrantFiled: October 21, 2014Date of Patent: March 29, 2016Assignee: PEROXYCHEM LLCInventors: John M. Rovison, Ricky Mittiga, Donald Lapham, Weidong An
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Publication number: 20150037209Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.Type: ApplicationFiled: October 21, 2014Publication date: February 5, 2015Inventors: John M. ROVISON, Ricky MITTIGA, Donald LAPHAM, Weidong AN
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Patent number: 8865066Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.Type: GrantFiled: March 12, 2013Date of Patent: October 21, 2014Assignee: PeroxyChem LLCInventors: John M. Rovison, Ricky Mittiga, Donald Lapham, Weidong An
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Publication number: 20140228328Abstract: The invention relates to anti-microbial compositions useful against a wide range of microorganisms undesirable on a wide variety of materials, including food, food contact and non-food contact surfaces, and surfaces in industrial, recreational, health care, and other institutional environments. More particularly, the anti-microbial compositions comprise peracetic acid in combination with a) citric acid or a salt and b) salicylic acid or a salt in aqueous solution.Type: ApplicationFiled: April 18, 2014Publication date: August 14, 2014Applicant: FMC CorporationInventors: John M. ROVISON, Donald LAPHAM, Shibu ABRAHAM, Mary HOMAN
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Publication number: 20130243650Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.Type: ApplicationFiled: March 12, 2013Publication date: September 19, 2013Applicant: FMC CorporationInventors: John M. Rovison, Ricky Mittiga, Donald Lapham, Weidong An
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Publication number: 20090312292Abstract: The invention relates to anti-microbial compositions useful against a wide range of microorganisms undesirable on a wide variety of materials, including food, food contact and non-food contact surfaces, and surfaces in industrial, recreational, health care, and other institutional environments. More particularly, the anti-microbial compositions comprise peracetic acid in combination with a) citric acid or a salt and b) salicylic acid or a salt in aqueous solution.Type: ApplicationFiled: December 20, 2007Publication date: December 17, 2009Applicant: FMC CORPORATIONInventors: John M. Rovison, Donald Lapham, III, Shibu Abraham, Mary Homan
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Patent number: 5501802Abstract: Persulfates are used to provide water clarity when organic sanitizers such as biguanides are utilized for sanitizing recreational waters. Persulfate applications of 2 ppm or more can be used. Additionally, maintenance applications of the persulfate or the bisulfate can be used.Type: GrantFiled: September 23, 1994Date of Patent: March 26, 1996Assignee: FMC CorporationInventors: Dean S. Thorp, Frank E. Caropreso, Robert H. Tieckelmann, Donald Lapham, III