Patents by Inventor Allen H. Kranz
Allen H. Kranz 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: 20030144547Abstract: A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid which includes introducing sulfuric acid into a first reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the first reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the first reactor to produce an intermediate aqueous hydrolysis solution containing 2-hydroxy-4-methylthiobutanamide. The intermediate aqueous hydrolysis solution is continuously introduced into a plug flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the plug flow reactor to produce an aqueous hydrolyzate product solution containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product solution.Type: ApplicationFiled: August 2, 2002Publication date: July 31, 2003Applicant: Novus International, Inc.Inventors: Yung C. Hsu, Thomas F. Blackburn, Paul F. Pellegrin, Allen H. Kranz, James M. willock
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Patent number: 6531101Abstract: A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid or a salt thereof which includes introducing an aqueous mineral acid into a nitrile hydrolysis reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the nitrile hydrolysis reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the nitrile hydrolysis reactor to produce a nitrile hydrolysis reactor product stream containing 2-hydroxy-4-methylthiobutanamide. The nitrile hydrolysis reactor product stream is continuously introduced into an amide hydrolysis flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the amide hydrolysis flow reactor to produce an aqueous hydrolyzate product containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product.Type: GrantFiled: December 28, 2000Date of Patent: March 11, 2003Inventors: Yung C. Hsu, Thomas F. Blackburn, Paul F. Pellegrin, Allen H. Kranz, James M. Willock
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Patent number: 6458997Abstract: A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid which includes introducing sulfuric acid into a first reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the first reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the first reactor to produce an intermediate aqueous hydrolysis solution containing 2-hydroxy-4-methylthiobutanamide. The intermediate aqueous hydrolysis solution is continuously introduced into a plug flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the plug flow reactor to produce an aqueous hydrolyzate product solution containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product solution.Type: GrantFiled: December 22, 2000Date of Patent: October 1, 2002Assignee: Novus International, Inc.Inventors: Yung C. Hsu, Thomas F. Blackburn, Paul F. Pellegrin, Allen H. Kranz, James M. Willock
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Patent number: 6268531Abstract: A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid or a salt thereof which includes introducing an aqueous mineral acid into a nitrile hydrolysis reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the nitrile hydrolysis reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the nitrile hydrolysis reactor to produce a nitrile hydrolysis reactor product stream containing 2-hydroxy-4-methylthiobutanamide. The nitrile hydrolysis reactor product stream is continuously introduced into an amide hydrolysis flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the amide hydrolysis flow reactor to produce an aqueous hydrolyzate product containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product.Type: GrantFiled: October 2, 1998Date of Patent: July 31, 2001Assignee: Novus International, Inc.Inventors: Yung C. Hsu, Thomas F. Blackburn, Paul F. Pellegrin, Allen H. Kranz, James M. Willock
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Publication number: 20010007041Abstract: A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid which includes introducing sulfuric acid into a first reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the first reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the first reactor to produce an intermediate aqueous hydrolysis solution containing 2-hydroxy-4-methylthiobutanamide. The intermediate aqueous hydrolysis solution is continuously introduced into a plug flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the plug flow reactor to produce an aqueous hydrolyzate product solution containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product solution.Type: ApplicationFiled: December 22, 2000Publication date: July 5, 2001Inventors: Yung C. Hsu, Thomas F. Blackburn, Paul F. Pellegrin, Allen H. Kranz, James M. Willock
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Publication number: 20010001105Abstract: A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid or a salt thereof which includes introducing an aqueous mineral acid into a nitrile hydrolysis reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the nitrile hydrolysis reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the nitrile hydrolysis reactor to produce a nitrile hydrolysis reactor product stream containing 2-hydroxy-4-methylthiobutanamide. The nitrile hydrolysis reactor product stream is continuously introduced into an amide hydrolysis flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the amide hydrolysis flow reactor to produce an aqueous hydrolyzate product containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product.Type: ApplicationFiled: December 28, 2000Publication date: May 10, 2001Inventors: Yung C. Hsu, Thomas F. Blackburn, Paul F. Pellegrin, Allen H. Kranz, James M. Willock
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Patent number: 6166250Abstract: A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid which includes introducing sulfuric acid into a first reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the first reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the first reactor to produce an intermediate aqueous hydrolysis solution containing 2-hydroxy-4-methylthiobutanamide. The intermediate aqueous hydrolysis solution is continuously introduced into a plug flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the plug flow reactor to produce an aqueous hydrolyzate product solution containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product solution.Type: GrantFiled: October 2, 1998Date of Patent: December 26, 2000Assignee: Novus International, Inc.Inventors: Yung C. Hsu, Thomas F. Blackburn, Paul F. Pellegrin, Allen H. Kranz, James M. Willock
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Patent number: 5998664Abstract: A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid which includes introducing sulfuric acid into a first reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the first reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the first reactor to produce an intermediate aqueous hydrolysis solution containing 2-hydroxy-4-methylthiobutanamide. The intermediate aqueous hydrolysis solution is continuously introduced into a plug flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the plug flow reactor to produce an aqueous hydrolyzate product solution containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product solution.Type: GrantFiled: June 13, 1997Date of Patent: December 7, 1999Assignee: Novus International, Inc.Inventors: Yung C. Hsu, Thomas F. Blackburn, Paul F. Pellegrin, Allen H. Kranz, James M. Willock
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Patent number: 5856567Abstract: A continuous process for the preparation of 2-hydroxy-4-methylthiobutanoic acid or a salt thereof which includes introducing an aqueous mineral acid into a nitrile hydrolysis reactor including a continuous stirred tank reactor and introducing 2-hydroxy-4-methylthiobutanenitrile into the nitrile hydrolysis reactor. 2-hydroxy-4-methylthiobutanenitrile is continually hydrolyzed within the nitrile hydrolysis reactor to produce a nitrile hydrolysis reactor product stream containing 2-hydroxy-4-methylthiobutanamide. The nitrile hydrolysis reactor product stream is continuously introduced into an amide hydrolysis flow reactor. 2-hydroxy-4-methylthiobutanamide is continually hydrolyzed within the amide hydrolysis flow reactor to produce an aqueous hydrolyzate product containing 2-hydroxy-4-methylthiobutanoic acid. 2-hydroxy-4-methylthiobutanoic acid is recovered from the aqueous hydrolyzate product.Type: GrantFiled: May 21, 1996Date of Patent: January 5, 1999Assignee: Novus International, Inc.Inventors: Yung C. Hsu, Thomas F. Blackburn, Paul F. Pellegrin, Allen H. Kranz, James M. Willock
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Patent number: 4012534Abstract: A sodium aluminum phosphate composition having an empirical formulax Na.sub.2 O . y Al.sub.2 O.sub.3 . 8 P.sub.2 O.sub.5 . z H.sub.2 Owherein x is a number higher than 15 up to and inclusive of 24, v is a number between 1.0 and 3.9 inclusive, and z is a number between 0 and 50 inclusive, is used for emulsification and to provide optimum alkalinity in preparing process cheese.Type: GrantFiled: May 15, 1975Date of Patent: March 15, 1977Assignee: Monsanto CompanyInventors: Thomas P. Kichline, Allen H. Kranz
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Patent number: 3957679Abstract: A sodium aluminum phosphate composition having an empirical formulax Na.sub.2 O . y Al.sub.2 O.sub.3 . 8 P.sub.2 O.sub.5 . z H.sub.2 Owherein x is a number higher than 15 up to and inclusive of 24, y is a number between 1.0 and 3.9 inclusive, and z is a number between 0 and 50 inclusive, said composition having an optimum available alkalinity for emulsification of cheese. The sodium aluminum phosphate composition is useful as a cheese emulsifier in process cheese compositions.Type: GrantFiled: November 1, 1973Date of Patent: May 18, 1976Assignee: Monsanto CompanyInventors: Thomas P. Kichline, Allen H. Kranz