Patents Assigned to Arch Develop.
  • Process for recovering chaotropic anions from an aqueous solution also containing other ions
    Patent number: 5888397
    Abstract: A solid/liquid process for the separation and recovery of chaotropic anions from an aqueous solution is disclosed. The solid support comprises separation particles having surface-bonded poly(ethylene glycol) groups, whereas the aqueous solution from which the chaotropic anions are separated contains a poly(ethylene glycol) liquid/liquid biphase-forming amount of a dissolved salt (lyotrope). A solid/liquid phase admixture of separation particles containing bound chaotropic anions in such an aqueous solution is also contemplated, as is a chromatography apparatus containing that solid/liquid phase admixture.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 30, 1999
    Assignees: ARCH Develop. Corp., The Board of Regents for Northern Illinois University
    Inventors: Robin Rogers, E. Philip Horwitz, Andrew H. Bond
  • Control of wound scar production
    Patent number: 5569678
    Abstract: This invention pertains to a method for controlling wound scar production by administering a calcium antagonist, alone or in a combination with or followed by a steroid, to the wound site. The method can be used to minimize wound scars, such as hypertrophic wound healing disorders, keloids and burn scar contractures in humans or other mammals, particularly those individually prone to excesssive scarring.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: October 29, 1996
    Assignees: Massachusetts Institute of Technology, Arch Develop.
    Inventor: Raphael C. Lee