Patents by Inventor Egbert Kremer

Egbert Kremer 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: 9522052
    Abstract: The invention relates to a dental implant comprising an implant body provided with a central receiving opening, a structural element provided with a journal engaging in the receiving opening, and a tension bolt which penetrates a borehole of the structural element and is screwed into an inner thread located in the receiving opening. First and second indexing elements are arranged in an apical region of the structural element, in order to pre-define the rotational position of the structural element in relation to the implant body. The at least one first indexing element is associated with the implant body or the structural element in a rotationally fixed manner, and at least two second indexing elements are associated with the structural element or the implant body in a rotationally fixed manner. The indexing elements extend especially at least partially into the region of the conical outer surface of the journal.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: December 20, 2016
    Assignee: FRIADENT GMBH
    Inventors: Dietrich Wolf, Egbert Kremer
  • Patent number: 9095397
    Abstract: The invention relates to an arrangement for insertion of an implant, in particular of a dental implant, which has an external thread and can be screwed into a bone by means of a tool, wherein the implant has a receiving opening with an at least partially conical inner face. A pin of an attachment part, which can be connected to the implant after the latter's insertion, can be fitted into the receiving opening. The arrangement is to be further developed such that the insertion of the implant can be performed in a simple and yet functionally reliable manner.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: August 4, 2015
    Assignee: Friadent GmbH
    Inventors: Egbert Kremer, Volker Biehl, Andre Spanel, Philip Cantzler
  • Publication number: 20110123949
    Abstract: The invention relates to a dental implant comprising an implant body provided with a central receiving opening, a structural element provided with a journal engaging in the receiving opening, and a tension bolt which penetrates a borehole of the structural element and is screwed into an inner thread located in the receiving opening. First and second indexing elements are arranged in an apical region of the structural element, in order to pre-define the rotational position of the structural element in relation to the implant body. The at least one first indexing element is associated with the implant body or the structural element in a rotationally fixed manner, and at least two second indexing elements are associated with the structural element or the implant body in a rotationally fixed manner. The indexing elements extend especially at least partially into the region of the conical outer surface of the journal.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 26, 2011
    Applicant: Friadent GmbH
    Inventors: Dietrich WOLF, Egbert Kremer
  • Publication number: 20100248181
    Abstract: The invention relates to an arrangement for insertion of an implant, in particular of a dental implant, which has an external thread and can be screwed into a bone by means of a tool, wherein the implant has a receiving opening with an at least partially conical inner face. A pin of an attachment part, which can be connected to the implant after the latter's insertion, can be fitted into the receiving opening. The arrangement is to be further developed such that the insertion of the implant can be performed in a simple and yet functionally reliable manner.
    Type: Application
    Filed: December 10, 2007
    Publication date: September 30, 2010
    Inventors: Egbert Kremer, Volker Biehl, Andre Spanel, Philip Cantzler
  • Publication number: 20080182227
    Abstract: The invention relates to a dental implant comprising an implant body providing with a central receiving opening, a structural element provided with a journal engaging in the receiving opening, and a tension bolt which penetrates a borehole of the structural element and is screwed into an inner thread located in the receiving opening. First and second indexing elements are arranged in an apical region of the structural element, in order to pre-define the rotational position of the structural element in relation to the implant body. The at least one first indexing element is associated with the implant body or the structural element in a rotationally fixed manner, and at least two second indexing elements are associated with the structural element or the implant body in a rotationally fixed manner. The indexing elements extend especially at least partially into the region of the conical outer surface of the journal.
    Type: Application
    Filed: February 2, 2006
    Publication date: July 31, 2008
    Inventors: Dietrich Wolf, Egbert Kremer
  • Patent number: 6974322
    Abstract: An implant-supported dental prosthesis (10) has in its main body (12) several basal recesses (13) in which in each case a conical cap (7) is embedded in self-curing plastic. Each conical cap (7) sits on a conical peg (6) of a construction post (2), which is inserted in a conical hole of an enossal implant (1). Exclusively prefabricated components are used for the production of the dental prosthesis. The embedding of the conical caps (7) in the main body (12) of the dental prosthesis (10) takes place in a single session in the dental practice, after which the dental prosthesis is completed.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: December 13, 2005
    Inventors: Dittmar May, Pascale Grote, Egbert Kremer, Werner Groll
  • Patent number: 6672869
    Abstract: A plug connection for jaw stump models for the releasable connection of tooth crown segments or jaw segments to a model base, which includes a plug pin (1) which can be connected in snap-lock fashion with a sleeve (12). A non-rotationally symmetric design of a rotational locking section (4), and a cross pin (7) arranged perpendicular to the plug pin axis, prevent rotary movement of the plug pin (1) in the sleeve. Disposed at the end of the plug pin (1) facing the sleeve is a spring element (8), which is provided with a circumferential annular groove (11) for a snap-locking connection with the sleeve. The spring element (8) comprises two spring tongues (10) separated by a continuous longitudinal slot (9). The sleeve provided for receiving the plug pin (1) comprises a projection projecting into the inner chamber for the snap-lock connection of the plug pin (1) with the sleeve as well as a sleeve opening region matching the rotational locking section (4) of the plug pin (1).
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: January 6, 2004
    Assignee: Degussa AG
    Inventors: Norbert Rabenstein, Wilfried Hentschel, Egbert Kremer, Ulrich Birkholz
  • Publication number: 20020177106
    Abstract: An implant-supported dental prosthesis (10) has in its main body (12) several basal recesses (13) in which in each case a conical cap (7) is embedded in self-curing plastic. Each conical cap (7) sits on a conical peg (6) of a construction post (2), which is inserted in a conical hole of an enossal implant (1). Exclusively prefabricated components are used for the production of the dental prosthesis. The embedding of the conical caps (7) in the main body (12) of the dental prosthesis (10) takes place in a single session in the dental practice, after which the dental prosthesis is completed.
    Type: Application
    Filed: July 12, 2002
    Publication date: November 28, 2002
    Inventors: Dittmar May, Pascale Grote, Egbert Kremer, Werner Groll
  • Publication number: 20020049009
    Abstract: A plug connection for jaw stump models for the releasable connection of tooth crown segments or jaw segments to a model base, which includes a plug pin (1) which can be connected in snap-lock fashion with a sleeve (12). A non-rotationally symmetric design of a rotational locking section (4), and a cross pin (7) arranged perpendicular to the plug pin axis, prevent rotary movement of the plug pin (1) in the sleeve. Disposed at the end of the plug pin (1) facing the sleeve is a spring element (8), which is provided with a circumferential annular groove (11) for a snap-locking connection with the sleeve. The spring element (8) comprises two spring tongues (10) separated by a continuous longitudinal slot (9). The sleeve provided for receiving the plug pin (1) comprises a projection projecting into the inner chamber for the snap-lock connection of the plug pin (1) with the sleeve as well as a sleeve opening region matching the rotational locking section (4) of the plug pin (1).
    Type: Application
    Filed: September 6, 2001
    Publication date: April 25, 2002
    Inventors: Norbert Rabenstein, Wilfried Hentschel, Egbert Kremer, Ulrich Birkholz
  • Patent number: 6375462
    Abstract: A screwdriver for intra-oral implantation features a screwdriver shaft (2), which, at one of its ends, is connected with a hand piece (1) and at its other end, via an angular gear drive (3), with a rotatable tool chuck (4). The screwdriver shaft (2) consists of shaft segments (6) that can, at least partially, be moved in relation to each other and that can be tightened by means of a common longitudinal tightening device for the purpose of fixing them in their relative positions. A drive shaft consists, in the area of the shaft segments (6) of individual shaft pieces that, in the connecting area of two shaft segments (6), are connected via an angular gear for the purpose of torque transmission.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: April 23, 2002
    Assignee: Degussa AG.
    Inventors: Andreas Holweg, Carsten Georg Köhler, Egbert Kremer
  • Publication number: 20010024779
    Abstract: A screwdriver for intra-oral implantation features a screwdriver shaft (2), which, at one of its ends, is connected with a hand piece (1) and at its other end, via an angular gear drive (3), with a rotatable tool chuck (4). The screwdriver shaft (2) consists of shaft segments (6) that can, at least partially, be moved in relation to each other and that can be tightened by means of a common longitudinal tightening device for the purpose of fixing them in their relative positions. A drive shaft consists, in the area of the shaft segments (6) of individual shaft pieces that, in the connecting area of two shaft segments (6), are connected via an angular gear for the purpose of torque transmission.
    Type: Application
    Filed: January 19, 2001
    Publication date: September 27, 2001
    Inventors: Andreas Holweg, Carsten Georg Kohler, Egbert Kremer
  • Patent number: 6280192
    Abstract: A device for handling dental implants (1) with a locking screw (4). The device includes an adapter (6), which is secured to the implant (1) by a central screw (8). A ratchet insert (23) can be snap-connected to the adapter (6) in a positive-locking manner. A screwdriver (31) rotatably arranged in the ratchet insert (23), can release a screw (8) connecting the adapter (6) to the implant (1). The implant (1) connected to the adapter (6) is held by a two-part holding hub (11) in a receptacle. The implant (1) is handled by the ratchet insert (23) and is screwed into the prepared bore in the jaw.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: August 28, 2001
    Assignee: Degussa AG
    Inventors: Werner Groll, Egbert Kremer