Patents by Inventor Paul Elliott Correa

Paul Elliott Correa 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: 6946128
    Abstract: The present disclosure relates to subtilisin protease conjugate comprising a protease moiety and one or more addition moieties. Each addition moiety is covalently attached to an epitope protection position of the protease moiety. The protease conjugates have decreased immunogenicity relative to a parent protease. The present disclosure further relates to cleaning and personal care compositions comprising the protease conjugates.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: September 20, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Donn Nelton Rubingh, David John Weisgerber, Paul Elliott Correa
  • Patent number: 6908757
    Abstract: The present invention relates to variants of serine proteases having decreased immunogenicity relative to their corresponding wild-type proteases. More particularly, the present invention relates to variants having a modified amino acid sequence of a wild-type amino acid sequence, wherein the modified amino acid sequence comprises a deletion and, optionally, a substitution of one or more specifically identified positions corresponding to subtilisin BPN?. The invention further relates to mutant genes encoding such variants and cleaning and personal care compositions comprising such variants.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: June 21, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Donn Nelton Rubingh, Elizabeth Ellen Sikorski, Paul Elliott Correa
  • Patent number: 6569663
    Abstract: The present invention relates to variants of serine proteases having decreased immunogenicity relative to their corresponding wild-type proteases. More particularly, the present invention relates to variants having a modified amino acid sequence of a wild-type amino acid sequence, wherein the modified amino acid sequence comprises a substitution of one or more specifically identified positions corresponding to subtilisin BPN′. The invention further relates to mutant genes encoding such variants and cleaning and personal care compositions comprising such variants.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: May 27, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Donn Nelton Rubingh, Elizabeth Ellen Sikorski, Paul Elliott Correa
  • Patent number: 6566115
    Abstract: The present disclosure relates to subtilisin protease conjugate comprising a protease moiety and one or more addition moieties. Each addition moiety is covalently attached to a clip site protection position of the protease moiety, wherein the clip site protection positions are selected from 13, 14, 15, 16, 18, 19, 20, 21, 84, 85, 88, 158, 159, 160, 161, 162, 163, 164, 165, 170, 186, 191, 192, 193, 194, 196, 259, 260, 261, 262, and 274 corresponding to subtilisin BPN′. The protease conjugates have decreased immunogenicity relative to a parent protease. The present disclosure further relates to cleaning and personal care compositions comprising the protease conjugates.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: May 20, 2003
    Assignee: The Procter & Gamble Company
    Inventors: David John Weisgerber, Donn Nelton Rubingh, Paul Elliott Correa
  • Patent number: 6495136
    Abstract: Protease conjugates such as subtilisin conjugates are provided comprising a protease moiety and one or more addition moieties wherein the protease moiety has a modified amino acid sequence of a parent amino acid sequence. The parent amino acid sequence comprises a first epitope region, a second epitope region and a third epitope region, and the modified amino acid sequence comprises a substitution by a substituting amino acid at one or more positions in one or more of the epitope regions. When a substitution occurs in the first epitope region, the substitution occurs at one or more positions corresponding to positions 70-84 of subtilisin BPN′. When a substitution occurs in the second epitope region, the substitution occurs at one or more positions corresponding to positions 103-126 of subtilisin BPN′. When a substitution occurs in the third epitope region, the substitution occurs at one or more positions corresponding to positions 217-252 of subtilisin BPN′.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: December 17, 2002
    Assignee: The Procter & Gamble Company
    Inventors: David John Weisgerber, Donn Nelton Rubingh, Paul Elliott Correa
  • Patent number: 6369011
    Abstract: The present relates to cleaning compositions comprising a protease enzyme which is a carbonyl variant having an amino acid sequence not found in nature, which is derived by replacement of a plurality of amino acid residues of a precursor carbonyl ydrolase with different amino acids.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: April 9, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Saroj Rai, Paul Elliott Correa, Yong Zhu, Thomas Paul Graycar, Richard Ray Bott
  • Patent number: 6248554
    Abstract: The present invention relates to an isolated BMP receptor kinase protein or soluble fragment thereof, a DNA sequence coding for said BMP receptor kinase protein or said soluble fragment thereof, a recombinant expression vector comprising said DNA sequence, a host cell comprising said recombinant expression vector, a method of expressing said BMP receptor kinase protein or soluble fragment thereof, a method for identifying compounds capable of binding to said BMP receptor kinase protein or soluble fragment thereof, a method for determining the amount of such compounds in a sample, and antibodies to said BMP receptor kinase protein.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: June 19, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Jonathan Shaun Cook, Paul Elliott Correa, Jan Susan Rosenbaum, Jerry Ting