Patents by Inventor Leendert Willem Schwab

Leendert Willem Schwab 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).

  • Tissue-adhesive material
    Patent number: 11779679
    Abstract: The invention is directed to a tissue-adhesive polymer blend comprising a bioresorbable carrier polymer and a bioresorbable synthetic tissue-reactive polymer as well as to a tissue-adhesive device for sealing dura mater comprising said tissue-adhesive polymer blend.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: October 10, 2023
    Assignee: Polyganics IP B.V.
    Inventors: Leendert Willem Schwab, Konstantin Igorovitch Denisov, Martin Franke Tooren, Theodorus Petrus Cornelis Van Doormaal
  • Tissue-Adhesive Material
    Publication number: 20210213158
    Abstract: The invention is directed to a tissue-adhesive polymer blend comprising a bioresorbable carrier polymer and a bioresorbable synthetic tissue-reactive polymer as well as to a tissue-adhesive device for sealing dura mater comprising said tissue-adhesive polymer blend.
    Type: Application
    Filed: March 17, 2021
    Publication date: July 15, 2021
    Inventors: Leendert Willem Schwab, Konstantin Igorovitch Denisov, Martin Franke Tooren, Theodorus Petrus Cornelis Van Doormaal
  • Nerve cap and production thereof
    Patent number: 10850004
    Abstract: The invention is directed to a nerve cap for covering a nerve stump, comprising a tubular body with a closed end and an open end and essentially consisting of biodegradable polymeric material to prevent or treat symptoms caused by neuroma. The polymeric material preferably comprises a poly(DL-lactide-co-?-caprolactone) copolymer obtained by the copolymerizaton of DL-lactide and ?-caprolactone, which copolymer has a lactide content of 51-75 mol %.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: December 1, 2020
    Assignee: Polyganics IP B.V.
    Inventors: Pieter van den Berg, Hans Wicher Kuijper, Leendert Willem Schwab, Mariëtta Johanna Olga Elizabeth Bertleff, Harmen Hendrikus de Vries
  • Nerve Cap and Production Thereof
    Publication number: 20200289704
    Abstract: The invention is directed to a nerve cap for covering a nerve stump, comprising a tubular body with a closed end and an open end and essentially consisting of biodegradable polymeric material to prevent or treat symptoms caused by neuroma. The polymeric material preferably comprises a poly(DL-lactide-co-?-caprolactone) copolymer obtained by the copolymerizaton of DL-lactide and ?-caprolactone, which copolymer has a lactide content of 51-75 mol %.
    Type: Application
    Filed: May 8, 2020
    Publication date: September 17, 2020
    Inventors: Pieter van den Berg, Hans Wicher Kuijper, Leendert Willem Schwab, Mariëtta Johanna Olga Elizabeth Bertleff, Harmen Hendrikus de Vries
  • Tissue-Adhesive Material
    Publication number: 20190307915
    Abstract: The invention is directed to a tissue-adhesive polymer blend comprising a bioresorbable carrier polymer and a bioresorbable synthetic tissue-reactive polymer as well as to a tissue-adhesive device for sealing dura mater comprising said tissue-adhesive polymer blend.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 10, 2019
    Inventors: Leendert Willem Schwab, Konstantin Igorovitch Denisov, Martin Franke Tooren, Theodorus Petrus Cornelis Van Doormaal
  • Nerve Cap and Production Thereof
    Publication number: 20180339083
    Abstract: The invention is directed to a nerve cap for covering a nerve stump, comprising a tubular body with a closed end and an open end and essentially consisting of biodegradable polymeric material to prevent or treat symptoms caused by neuroma. The polymeric material preferably comprises a poly(DL-lactide-co-?-caprolactone) copolymer obtained by the copolymerizaton of DL-lactide and ?-caprolactone, which copolymer has a lactide content of 51-75 mol %.
    Type: Application
    Filed: March 7, 2016
    Publication date: November 29, 2018
    Inventors: Pieter van den Berg, Hans Wicher Kuijper, Leendert Willem Schwab, Mariëtta Johanna Olga Elizabeth Bertleff, Harmen Hendrikus de Vries
  • Polyacylurethanes based on diisocyanates and polyesterpolyols
    Patent number: 7786326
    Abstract: The present invention relates to a polyacylurethane having the following general formula (I) and a process for the preparation of such polyacylurethane. Preferred embodiments of the polyacylurethanes according to the invention have elastomeric properties. The polyacylurethanes can suitable be used in biodegradable, biocompatible and/or biomedical devices.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: August 31, 2010
    Assignee: Stichting Voor de Technische Wetenschappen
    Inventors: Ralf Guillaume Jean Catharina Heijkants, Arend Jan Schouten, Leendert Willem Schwab, Frans Vincent Roukes, Albert Johan Pennings
  • Polyacylurethanes Based on Diisocyanates and Polyesterpolyols
    Publication number: 20080214771
    Abstract: The present invention relates to a polyacylurethane having the following general formula (I) and a process for the preparation of such polyacylurethane. Preferred embodiments of the polyacylurethanes according to the invention have elastomeric properties. The polyacylurethanes can suitable be used in biodegradable, biocompatible and/or biomedical devices.
    Type: Application
    Filed: July 21, 2005
    Publication date: September 4, 2008
    Inventors: Ralf Guillaume Jean Catharina Heijkants, Arend Jan Schouten, Leendert Willem Schwab, Frans Vincent Roukes, Albert Johan Pennings