Patents by Inventor Jan Solberg

Jan Solberg 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).

  • Dry microparticles for use as a contrast agent
    Patent number: 6274120
    Abstract: Microparticulate contrast agents comprising gas or a gas precursor encapsulated by a non-polymeric and non-polymerisable wall-forming material are readily characterisable materials exhibiting surprising structural integrity and stability.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: August 14, 2001
    Assignee: Nycomed Imaging AS
    Inventors: Harald Dugstad, Per Antonius Foss, Jo Klaveness, Pål Rongved, Roald Skurtveit, Jan Solberg, Inger Reidun Fjeldskaar Aukrust
  • Contrast agents comprising gas-containing or gas-generating microparticles or microballoons
    Patent number: 5795562
    Abstract: The present invention relates to contrast agents comprising gas-containing or gas-generating polymer microparticles and/or microballoons, in which the polymer is a biodegradable polymer containing units of formula -?--(O).sub.m --CO--O--C(R.sup.1 R.sup.2)--O--CO--(O).sub.n --!- . R.sup.1 and R.sup.2 each represent hydrogen or a carbon-attached monovalent organic group, or together form a carbon-attached divalent organic group, and m and n are each independently zero or one. The contrast agents may be used in diagnostic applications such as ultrasound and MR imaging.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: August 18, 1998
    Assignee: Nycomed Imaging AS
    Inventors: Jo Klaveness, Keith Redford, P.ang.l Rongved, Jan Solberg, Per Strande, Unni Nordby Wiggen
  • Contrast agents comprising gas-containing or gas-generating polymer microparticles or microballoons
    Patent number: 5676925
    Abstract: Contrast agents comprising gas-containing or gas-generating polymer microparticles and/or microballoons, in which the polymer is a biodegradable polymer containing units of formula--(O).sub.m --CO--O--C(R.sup.1 R.sup.2)--O--CO--(O).sub.n --(wherein R.sup.1 and R.sup.2 each represent hydrogen or a carbon-attached monovalent organic group or together form a carbon-attached divalent organic group, and m and n are each independently zero or one) may be used in diagnostic applications such as ultrasound and MR imaging.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 14, 1997
    Assignee: Nycomed Imaging AS
    Inventors: Jo Klaveness, P.ang.l Rongved, Jan Solberg, Per Strande, Unni Nordby Wiggen, Keith Redford
  • Contrast agents comprising gas-containing or gas-generating polymer microparticles or microballoons
    Patent number: 5674468
    Abstract: Contrast agents comprising gas-containing or gas-generating polymer microparticles and/or microballoons, in which the polymer is a biodegradable polymer containing units of formula--(O).sub.m --CO--O--C(R.sup.1 R.sup.2)--O--CO--(O).sub.n --(wherein R.sup.1 and R.sup.2 each represent hydrogen or a carbon-attached monovalent organic group or together form a carbon-attached divalent organic group, and m and n are each independently zero or one) may be used in diagnostic applications such as ultrasound and MR imaging.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: October 7, 1997
    Assignee: Nycomed Imaging AS
    Inventors: Jo Klaveness, Pal Rongved, Jan Solberg, Per Strande, Unni Nordby Wiggen, Keith Redford
  • Chemical compounds
    Patent number: 5574097
    Abstract: The invention relates to non-crosslinked non-polypeptide polymers containing biodegradable lipophilic side chains incorporating methylene diester units of the formula --[--CO--O--C(R.sup.1 R.sup.2)--O--CO--]--, where R.sup.1 and R.sup.2 each represents a hydrogen atom or a carbon-attached monovalent organic group or R.sup.1 and R.sup.2 together form a carbon-attached divalent organic group. The lipophilic moieties are biodegradatively cleavable to yield a water-soluble polymer.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: November 12, 1996
    Assignee: Nycomed Imaging AS
    Inventors: Jo Klaveness, Keith Redford, Jan Solberg, Per Strande