Patents by Inventor SHAHID ALI AHMED

SHAHID ALI AHMED 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).

  • MIXTURES OF FIBRE-REACTIVE AZO DYES, THEIR PREPARATION AND THEIR USE
    Publication number: 20200270460
    Abstract: The present invention relates to novel mixtures of reactive dyes, a composition comprising the dye mixture according to the invention, an ink or a printing ink or printing paste or dyeing bath for printing or dyeing a substrate comprising the dye mixture according to the invention or the composition according to the invention, their use for dyeing and/or printing substrates, a process for dyeing or printing substrates and substrates comprising the dye mixture according to the invention or the composition according to the invention. Those mixtures are suitable for dyeing and/or printing substrates, such as paper, textiles, glass, plastics or metal, and can be applied in combination with other dyes.
    Type: Application
    Filed: October 12, 2018
    Publication date: August 27, 2020
    Inventors: Asad Bilal Haleem, Shahid Ali Ahmed, Rainer Nusser
  • Bisazo dyes and mixtures thereof
    Patent number: 10214648
    Abstract: The present invention relates to novel bisazo dyes, a process for their preparation and their use for dyeing and/or printing substrates.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: February 26, 2019
    Assignee: ARCHROMA IP GMBH
    Inventors: Asad Bilal Haleem, Shahid Ali Ahmed
  • BISAZO DYES AND MIXTURES THEREOF
    Publication number: 20170121527
    Abstract: The present invention relates to novel bisazo dyes, a process for their preparation and their use for dyeing and/or printing substrates.
    Type: Application
    Filed: March 31, 2015
    Publication date: May 4, 2017
    Inventors: ASAD BILAL HALEEM, SHAHID ALI AHMED