Patents by Inventor Laddawan Chunchatprasert

Laddawan Chunchatprasert 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).

  • Antitumor tetracyclic compounds
    Patent number: 6013807
    Abstract: The present invention relates to heterocyclic compounds which have been found to have anti-tumour activity. More specifically, the invention concerns pyrrolo[2,3-b]carbazoles and 1H-[1] benzothieno [2,3-f] indoles, methods for their preparation, pharmaceutical formulations containing them and their use as anti-tumour agents. The compounds have low toxicity against normal cell lines whilst exhibiting anti-tumour cell activity.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: January 11, 2000
    Assignee: University College Cardiff Consultants Limited
    Inventors: David Drysdale Miller, Sadie Vile, Patrick Vivian Richard Shannon, Laddawan Chunchatprasert, Alan Thomas Hudson
  • Pyrrolo?3,2-b-!-carbazoles and 1H?1!benzothieno ?2,3-f! indoles having anti-tumor activity
    Patent number: 5852204
    Abstract: The present invention relates to heterocyclic compounds which have been found to have anti-tumor activity. More specifically, the invention concerns pyrrolo?3,2-b!carbazoles and 1H-?1! benzothieno ?2,3-f! indoles, methods for their preparation, pharmaceutical formulations containing them and their use as anti-tumor agents. The compounds have low toxicity against normal cell lines while exhibiting anti-tumor cell activity.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: December 22, 1998
    Assignee: University College Cardiff Consultants Limited
    Inventors: David Drysdale Miller, Sadie Vile, Patrick Vivian Richard Shannon, Laddawan Chunchatprasert, Alan Thomas Hudson
  • Heterocyclic compounds
    Patent number: 5770598
    Abstract: The present invention relates to heterocyclic compounds which have been found to have anti-tumour activity. More specifically, the invention concerns Pyrrolo ?3,2-b! carbazoles, 1H-Benzofuro ?3,2-.function.! indoles and 1H-?1! Benzothieno ?2,3-.function.! indoles, methods for their preparation, pharmaceutical formulations containing them and their use as anti-tumour agents.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: June 23, 1998
    Assignee: University College Cardiff Consultants Limited
    Inventors: David D. Miller, Paul Barraclough, Sadie Vile, Ann L. Walker, Patrick V. R. Shannon, Laddawan Chunchatprasert, Pierre P. M. Debont, Alan T. Hudson
  • Tetracyclic compounds, intermediates for their preparation and their use as antitumor agents
    Patent number: 5679694
    Abstract: The invention relates to compounds of formula (I) which have been found to possess anti-tumor activity. Pharmaceutical compositions and methods of treating tumors are also disclosed.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: October 21, 1997
    Assignees: The Wellcome Foundation Ltd., University College Cardiff Consultants Limited
    Inventors: Karl Witold Franzmann, Jeremy Nigel Stables, Patrick Vivian Richard Shannon, Nagaraja Kodanda Ranganatha Rao, Laddawan Chunchatprasert