Patents by Inventor Ralph Lessor

Ralph Lessor 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).

  • Publication number: 20060293243
    Abstract: Stable, pharmaceutical compositions including a synthetic motilin-like peptide in a buffered solution are disclosed. The composition provides for a peptide that remains stable and substantially retains its initial potency during extended storage and after steam sterilization.
    Type: Application
    Filed: August 4, 2005
    Publication date: December 28, 2006
    Inventors: Navneet Puri, Satish Pejaver, Varun Sethi, Ralph Lessor
  • Publication number: 20060287243
    Abstract: Stable, pharmaceutical compositions including a synthetic motilin-like peptide in a buffered aqueous solution or in an unbuffered aqueous solution are disclosed. The composition provides for a peptide that remains stable and substantially retains its initial potency during extended storage and after steam sterilization.
    Type: Application
    Filed: August 4, 2005
    Publication date: December 21, 2006
    Inventors: Navneet Puri, Satish Pejaver, Varun Sethi, Ralph Lessor
  • Publication number: 20050222468
    Abstract: Provided is a process of obtaining 1,1,1,3,3,3-hexafluoro-2-propanol (“HFIP”) from a composition comprising an HFIP hydrolyzable precursor. The HFIP hydrolyzable precursor is a compound, other than sevoflurane itself, that has an intact 1,1,1,3,3,3-hexafluoroisopropoxy moiety[(CF3)2CH—], and contains one or more moieties susceptible to acidic hydrolysis, such that HFIP is released upon such treatment. The process is useful, among other things, for recovering HFIP from waste streams associated with the synthesis of the inhalation anesthetic, fluoromethyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether (“sevoflurane”). The process includes heating the composition with a strong protic acid to a temperature effective to hydrolyze at least some of the HFIP hydrolyzable precursor to HFIP, and then isolating the HFIP from the heated composition.
    Type: Application
    Filed: May 24, 2005
    Publication date: October 6, 2005
    Inventors: Leonid Rozov, Ralph Lessor
  • Patent number: 6448451
    Abstract: The invention provides a process for purifying methyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether, comprising: passing a composition comprising methyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether and dimethyl ether through an evaporation zone; evaporating dimethyl ether by passing a gas stream through the composition; and removing the gas comprising dimethyl ether from the composition.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: September 10, 2002
    Assignee: Baxter International, Inc.
    Inventors: Ralph Rudzinski, Ralph Lessor