Patents Assigned to Igen, Incorporated
  • Methods, uses and compositions of fluid petrolatum
    Patent number: 6309664
    Abstract: A fluid preparation of petrolatum capable of being sprayed on to a surface. The preparation includes paucilamellar lipid vesicles containing the petrolatum. Preferably, petrolatum comprises about 20-30% or more of the total weight of the vesicles. Methods of protecting the skin of mammals using the fluid preparation of petrolatum are also discussed.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: October 30, 2001
    Assignee: Igen, Incorporated
    Inventors: Rajiv Mathur, Nadya Lawrence
  • Method for detecting a nucleic acid analyte using an improved electrochemiluminescent label
    Patent number: 5686244
    Abstract: This invention relates to a new electrochemiluminescent (ECL) label for oligonucleotides using phosphoramidite chemistry.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 11, 1997
    Assignee: IGEN Incorporated
    Inventors: Satyanarayana R. Gudibande, John H. Kenten
  • Lipid-A analogs: monosaccharide and dissaccharide compounds for inhibiting binding of lipid A receptors to lipid A receptors
    Patent number: 5593969
    Abstract: A compound of the formula: ##STR1## wherein: each of R.sub.1, R.sub.1 ', R.sub.2 and R.sub.2 ' independent of each other is a substituted or unsubstituted, branched or linear C.sub.1-12 alkyl, alkene or alkyne group, R.sub.3 is OH, OCH.sub.3, CH.sub.2 COOH or ##STR2## wherein each of R.sub.2" and R.sub.2 '41 independent of each other is a substituted or unsubstituted, branched or linear C.sub.1-12 alkyl, alkene or alkyne group and:A=NH.sub.2, X=P(OH), Y=Z=C, B=OCH.sub.3, orA=OH, X=P(OH), X=Z=C, B (if present)=OCH.sub.3, orA=OCO(CH.sub.2).sub.n NH.sub.2, X=P(OH), Y=Z=C, B=OCH.sub.3,wherein n=1-10, orA=OH, X=P(OH), Y=Z=C, B=O(CH.sub.2).sub.n CO.sub.2 H, wherein n=1-10, orA=OH, X=P(OH), Y=Z=C, B=(CH.sub.2).sub.n CO.sub.2 H, wherein n=1-10, orA=NH.sub.2, X=Z=C, Y=P(OH), B=OCH.sub.3, orA=OH, X=Z=C, Y=P(OH), B (if present)=OCH.sub.3, orA=OCO(CH.sub.2).sub.n NH.sub.2, X=Z=C, Y=P(OH), B=OCH.sub.3, wherein n=1-10, orA=OH, X=Z=C, Y=P(OH), B=O(CH.sub.2).sub.n CO.sub.2 H, wherein n=1-10, orA=OH, X=Z=C, Y=P(OH), B=(CH.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: January 14, 1997
    Assignee: IGEN Incorporated
    Inventors: Balreddy Kamireddy, Michael J. Darsley, David M. Simpson, Richard J. Massey