Alexander HELLAWELL

Person

  • Cambridge, GB

Patents Grantslast 30 patents

  • Information Patent Grant

    Modified indigo compounds and methods of dyeing a substrate using a...

    • Patent number 11,208,559
    • Issue date Dec 28, 2021
    • THE H.D. LEE COMPANY, INC.
    • Sudhakar Puvvada
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Lubricating oil composition

    • Patent number 10,160,927
    • Issue date Dec 25, 2018
    • Shell Oil Company
    • Alexander Mark Robert James Hellawell
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents