Patents by Inventor Christoph FIK

Christoph FIK 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).

  • Dental composition
    Patent number: 11931432
    Abstract: The present invention relates to a dental composition comprising a specific radically polymerizable compound and a radical initiator system. Furthermore, the present invention relates to the specific radically polymerizable compound and its use in a dental composition. The specific radically polymerizable compound of the present invention has an allyl (meth)acrylamide group and a phosphoric acid ester group.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 19, 2024
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Christoph Fik, Maximilian Maier, Joachim E. Klee, Christian Scheufler
  • Dental composition
    Patent number: 11433004
    Abstract: The present invention relates to a dental composition comprising (i) an acidic polymerizable compound of the following formula (Ia), (Ib) or (Ic): wherein X, Y, Y?, Z, L, R2, R3 and R4 are as defined in claim 1; and (ii) an initiator system. Furthermore, the present invention relates to the use of the polymerizable compound of formula (I) for the preparation of a dental composition.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: September 6, 2022
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Christoph Fik, Sven Pohle, Joachim E. Klee, Marina Barudzija, Magnus Schmidt, Markus Ringwald
  • Dental composition
    Patent number: 11116702
    Abstract: The present invention relates to a dental composition comprising a specific polymerizable compound and a polymerization initiator system. Furthermore, the present invention relates to the specific polymerizable compound as such and its use in a dental composition. The specific polymerizable compound of the present invention has an N-allyl (meth)acrylamide group, which nitrogen atom is substituted with an alkyl or alkenyl group optionally substituted by a group selected from a hydroxyl group, a C1-4 alkoxy group, a tertiary amino group and a carboxyl group, wherein 1 to 8 carbon atoms in the main chain of the alkyl or alkenyl group may independently from each other be replaced by a heteroatom selected from an oxygen atom and a sulfur atom.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: September 14, 2021
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Christoph Fik, Joachim E. Klee, Christian Scheufler, Christoph Weber
  • Dental composition
    Patent number: 11000454
    Abstract: Disclosed here in is a dental composition having a novel polymerizable compound, a photosensitizer and an iodonium salt. Further disclosed are method of preparing a dental composition.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: May 11, 2021
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Christoph Fik, Maximilian Maier, Joachim E. Klee
  • DENTAL COMPOSITION
    Publication number: 20200323743
    Abstract: The present invention relates to a dental composition comprising (i) an acidic polymerizable compound of the following formula (Ia), (Ib) or (Ic): wherein X, Y, Y?, Z, L, R2, R3 and R4 are as defined in claim 1; and (ii) an initiator system. Furthermore, the present invention relates to the use of the polymerizable compound of formula (I) for the preparation of a dental composition.
    Type: Application
    Filed: May 19, 2017
    Publication date: October 15, 2020
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Christoph FIK, Sven POHLE, Joachim E. KLEE, Marina STOJILJKOVIC, Dr. Magnus Schmidt, Dr. Markus Ringwald
  • DENTAL COMPOSITION
    Publication number: 20200085697
    Abstract: The present invention relates to a dental composition comprising a specific radically polymerizable compound and a radical initiator system. Furthermore, the present invention relates to the specific radically polymerizable compound and its use in a dental composition. The specific radically polymerizable compound of the present invention has an allyl (meth)acrylamide group and a phosphoric acid ester group.
    Type: Application
    Filed: December 13, 2017
    Publication date: March 19, 2020
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Christoph FIK, Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER
  • DENTAL COMPOSITION
    Publication number: 20200022884
    Abstract: The present invention relates to a dental composition comprising a specific polymerizable compound and a polymerization initiator system. Furthermore, the present invention relates to the specific polymerizable compound as such and its use in a dental composition. The specific polymerizable compound of the present invention has an N-allyl (meth)acrylamide group, which nitrogen atom is substituted with an alkyl or alkenyl group optionally substituted by a group selected from a hydroxyl group, a C1-4 alkoxy group, a tertiary amino group and a carboxyl group, wherein 1 to 8 carbon atoms in the main chain of the alkyl or alkenyl group may independently from each other be replaced by a heteroatom selected from an oxygen atom and a sulfur atom.
    Type: Application
    Filed: December 12, 2017
    Publication date: January 23, 2020
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Christoph FIK, Joachim E. KLEE, Christian SCHEUFLER, Christoph WEBER
  • DENTAL COMPOSITION
    Publication number: 20190117523
    Abstract: Disclosed here in is a dental composition having a novel polymerizable compound, a photosensitizer and an iodonium salt. Further disclosed are method of preparing a dental composition.
    Type: Application
    Filed: May 19, 2017
    Publication date: April 25, 2019
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Christoph FIK, Maximilian MAIER, Joachim E. KLEE