Patents by Inventor Jawad Niciri

Jawad Niciri 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).

  • Fast switching ferroelectric liquid crystalline polymers
    Patent number: 5252695
    Abstract: Liquid crystal polymers containing 0.1 to 0.9 mole % of repeating units bing a mesogenic side group and 0.1 to 0.9 mole % of repeating units which do not bear a mesogenic side group in which the mesogenic side group has the formula:--(CH.sub.2).sub.n O--R.sub.1 --X--R.sub.2R.sub.1 is 1,4-phenylene or 4,4'-biphenylene;X is --COO-- or --OCO--;R.sub.2 is ##STR1## wherein k is 0 or 1, * indicates an optically active center;Z is NO.sub.2, F, or Cl;R.sub.3 is C.sub.l H.sub.2l+1, --*CH(CH.sub.3)C.sub.p H.sub.2p+1 --CH.sub.2 C.sub.q F.sub.2q+1, --*CH(CH.sub.3)COOC.sub.t H.sub.2t+1 (wherein l and p are each independently an integer of from 1 to 10 and q and t are each independently an integer of from 1 to 6); and n is an integer of 4 to 12;exhibit fast response times.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: October 12, 1993
    Assignees: The United States of America as represented by the Secretary of the Navy, Geo-Centers, Inc.
    Inventors: Jawad Niciri, Joel M. Schnur, Ranganathan Shashidhar