TREA

Paul Wojtkowski

Follow

Person

  • Wilmington, DE, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for acylating cyclic compounds
    • Patent number 6,809,206
    • Issue date Oct 26, 2004
    • E. I. Du Pont de Nemours and Company
    • Paul Walter Wojtkowski
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Preparation of phenylhydroquinone
    • Patent number 4,960,957
    • Issue date Oct 2, 1990
    • E. I. Du Pont de Nemours and Company
    • Paul W. Wojtkowski
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Preparation of ortho-(alkyl- or arylthio)phenols
    • Patent number 4,792,633
    • Issue date Dec 20, 1988
    • E. I. Du Pont de Nemours and Company
    • Paul W. Wojtkowski
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Phenol from coal and biomass
    • Patent number 4,605,790
    • Issue date Aug 12, 1986
    • E. I. Du Pont de Nemours and Company
    • Paul W. Wojtkowski
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Process for preparing ortho-(alkylthio)phenols
    • Patent number 4,599,451
    • Issue date Jul 8, 1986
    • E. I. DuPont de Nemours and Company
    • Paul W. Wojtkowski
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Thio-.beta.-lactam cephalosporins
    • Patent number 4,039,537
    • Issue date Aug 2, 1977
    • E. R. Squibb & Sons, Inc.
    • Christopher M. Cimarusti
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Thio-.beta.-lactam cephalosporins
    • Patent number 4,018,760
    • Issue date Apr 19, 1977
    • E. R. Squibb & Sons, Inc.
    • Christopher M. Cimarusti
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Thio-.beta.-lactam cephalosporins
    • Patent number 4,018,761
    • Issue date Apr 19, 1977
    • E. R. Squibb & Sons, Inc.
    • Christopher M. Cimarusti
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Thio-.beta.-lactam cephalosporins
    • Patent number 3,971,780
    • Issue date Jul 27, 1976
    • E. R. Squibb & Sons, Inc.
    • Christopher M. Cimarusti
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Thio-.beta.-lactam penicillins
    • Patent number 3,971,776
    • Issue date Jul 27, 1976
    • E. R. Squibb & Sons, Inc.
    • Christopher M. Cimarusti
    • C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents