Patents by Inventor Hengli Ma

Hengli Ma 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).

  • Information matrix cryptogram
    Patent number: 7577845
    Abstract: In accordance with the present invention, there is provided a concept of the present invention is to use technology and methods of a special coded information matrix cryptogram with five integrated technologies to protect the original digital data from forgery, counterfeiting and pirating effectively. Five technologies comprise of data matrix bitmap technology, compression technology, encryption technology, data allocating technology and authentication technology. They can enhance the information matrix cryptogram with the special features to the strongest level of security. The concept of designing the system of the present invention is to be able to convert any data in any kind of formats and size into a special formatted and coded information matrix cryptogram. This cryptogram with a special authentic code is unique and infeasible to break.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: August 18, 2009
    Inventor: Hengli Ma
  • Information matrix cryptogram
    Publication number: 20060041762
    Abstract: In accordance with the present invention, there is provided a concept of the present invention is to use technology and methods of a special coded information matrix cryptogram with five integrated technologies to protect the original digital data from forgery, counterfeiting and pirating effectively. Five technologies comprise of data matrix bitmap technology, compression technology, encryption technology, data allocating technology and authentication technology. They can enhance the information matrix cryptogram with the special features to the strongest level of security. The concept of designing the system of the present invention is to be able to convert any data in any kind of formats and size into a special formatted and coded information matrix cryptogram. This cryptogram with a special authentic code is unique and infeasible to break.
    Type: Application
    Filed: August 17, 2004
    Publication date: February 23, 2006
    Inventor: Hengli Ma
  • Extraction of rare earth elements using alkyl phosphinic acid or salt/alkyl or aryl phosphonic acid or ester blends as extractant
    Patent number: 5639433
    Abstract: A method is disclosed whereby rare earth elements are extracted from acidic solutions thereof using, as an extractant, a mixture of an alkyl (C.sub.4 -C.sub.12) phosphinic acid or salt and an alkyl (C.sub.4 -C.sub.12) or aryl phosphonic acid or ester thereof.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: June 17, 1997
    Assignee: Cytec Technology Corp.
    Inventors: Chengye Yuan, Hengli Ma
  • Extraction of rare earth elements using alkyl phosphinic acid or salt/tetraalkylammonium salt as extractant
    Patent number: 5622679
    Abstract: A method whereby rare earth elements are extracted from acidic solutions thereof using, as an extractant, a mixture of an alkyl (C.sub.4 -C.sub.12) phosphinic acid or salt and a tetraalkylammonium salt wherein the total number of carbon atoms in the four alkyl groups ranges from 14 to 56.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: April 22, 1997
    Assignee: Cytec Technology Corp.
    Inventors: Chengye Yuan, Hengli Ma