Patents by Inventor Fredrik Viklund

Fredrik Viklund 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).

  • Non-ionic surfactants for poorly soluble molecules
    Patent number: 7491836
    Abstract: New non-ionic surfactants in the form of polyoxyalkylene glycol hydroxy fatty acid derivatives or monoalkylated polyoxyalkylene glycol hydroxy fatty acid derivatives having a polyoxyalkylene/alkyl polyoxyalkylene chain with a chain-length of 25-455 repeating units and a specified substituent on the hydroxy position of the specified hydroxy fatty acid, according to the general formula (I) CH3—(CH2)x—CH—(CH2)y—CO—[—O—R3—]z—O—R1 R2—O (I); wherein for example R1 is methyl, R2 is optionally substituted C14-C22 acyl, alkyl, or alkenyl, R3 is ethylene, x is 2-12, y is 7-17, (x+y) is 3-19 and z is 25-57; advantageously prepared by involving an enzymatic process, formulations comprising them, their use as solubilizers and a process involving a hydrolytic enzyme for preparing them.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: February 17, 2009
    Assignee: AstraZeneca AB
    Inventors: Christian von Corswant, Karl Hult, Erik Söderlind, Fredrik Viklund
  • Non-ionic surfactants for solubilizing poorly solubule molecules
    Publication number: 20060287542
    Abstract: New non-ionic surfactants in the form of polyoxyalkylene glycol hydroxy fatty acid derivatives or monoalkylated polyoxyalkylene glycol hydroxy fatty acid derivatives having a polyoxyalkylene / alkyl polyoxyalkylene chain with a chain-length of 25-455 repeating units and a specified substituent on the hydroxy position of the specified hydroxy fatty acid, according to the general formula (I) CH3—(CH2)x—CH—(CH2)y—CO—[—O—R3—]z—O—R1 R2—O (I); wherein for example R1 is methyl, R2 is optionally substituted C14—C22 acyl, alkyl, or alkenyl, R3 is ethylene, x is 2-12, y is 7-17, (x+y) is 3-19 and z is 25-57; advantageously prepared by involving an enzymatic process, formulations comprising them, their use as solubilizers and a process involving a hydrolytic enzyme for preparing them.
    Type: Application
    Filed: April 13, 2004
    Publication date: December 21, 2006
    Inventors: Christian von Corswant, Karl Hult, Erik Soderlind, Fredrik Viklund