Patents by Inventor Rune Ringberg

Rune Ringberg 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).

  • Patent number: 6420028
    Abstract: A polymer article having structure (I), where P comprises the basic polymer and groups —L—CH(—X(R1)p)—CH2(—Y(R2)p); L is a part of a pending group utilized for introducing —X(R1)p and —Y(R2)p; X and Y are halogen, N, S and O; R1 is hydrogen, alkyl, acyl or R2 when X is N, O or S; R2 is hydrogen, alkyl, alkylaryl or arylalkyl in which the alkyl part may contain 1-18 carbons, or —R3(—NH—CR4═O)q or —R3(—NH2)q, —CR4═O or poly alkyloxy that may have been terminally acylated or alkylated; p is an integer 0-3, with the provisos a) p depends on X being halogen, O, S or N, and b) that if several groups R2 are present they may be identical or different; R3 is alkyl, —O-alkyl, hydroxyalkyl, phenylalkyl, with up to 18 carbon atoms in the alkyl part, and R4 is C1-18 alkyl. q is an integer>O representing that one or more hydrogens in R3 may have been replaced with —NH2 or —NH—CR4═O.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: July 16, 2002
    Assignee: Amersham Pharmacia Biotech AB
    Inventors: Steinar Hagen, Rune Ringberg, Geir Fonnum