Very little is known about Hussain's scientific background due to the extreme secrecy involved in the Pakistan's atomic bomb project. It was only on 23 May of 1995, when he came to short public notice when the United States Patent Office announced to issu a patent titled "Centrifuge process to separate the isotopes of uranium hexafluoride" to him in which it was acknowledged by the Patent Office that method gives a complete istopic separation of U-235 from U-238 with a purity of almost 100% in a single stage. Details of this patent can be seen at the web site of the Patent Office under patent number 5,417,944.
According to Dawn Wire Service, a leading Pakistaninewspaper, in its 24 August 1995 issue, "The government of Pakistan recently put M.Q. Hussain on the Exit Control List and he is not allowed to travel abroad to pursue the patent he has been granted by the U.S. Department of Commerce's Patent and Trademark Office.
His name was put into the Exit Control List (ECL) and was put out of the public eye following the news became public. Details of his movements were covered up by the Pakistan's governmental authorities and such details about his are not clearly publicly known. This patent (number 5,417,944) was offered for sale in 1997, by a person identified as "Muhammad Q. Husain" residing at 37-A Elliot Place, Smithtown, NY.