Patents by Inventor Gerald A. Niznick

Gerald A. Niznick 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: 12156780
    Abstract: A screw-type endosseous dental implant includes, near the top on its external surface, a ridge projecting laterally and an internally-threaded shaft with a lead-in, beveled opening, an internal wrench-engaging surface located below the lead-in, beveled opening and below the internal wrench-engaging surface and above the internal threads, an internal undercut/groove creating a chamber formed to receive a snap attachment for retention of an over-denture.
    Type: Grant
    Filed: April 4, 2023
    Date of Patent: December 3, 2024
    Inventor: Gerald A Niznick
  • Publication number: 20240335261
    Abstract: A screw-type endosseous dental implant includes, near the top on its external surface, a ridge projecting laterally and an internally-threaded shaft with a lead-in, beveled opening, an internal wrench-engaging surface located below the lead-in, beveled opening and below the internal wrench-engaging surface and above the internal threads, an internal undercut/groove creating a chamber formed to receive a snap attachment for retention of an over-denture.
    Type: Application
    Filed: April 4, 2023
    Publication date: October 10, 2024
    Inventor: Gerald A Niznick
  • Publication number: 20240173106
    Abstract: A dental implant includes an internal passage/shaft extending down from the top of the implant with a connection structure that includes, at/near the opening into the internal passage, a lead-in bevel configured for insertion of a post, abutment, or other insert, into the passage, below the lead-in bevel, inside the passage, an internal wrench-engaging surface; and, below the internal wrench-engaging surface, inside the passage, another beveled portion, inside the implant, configured to mate with the insert/abutment/post, to form an interference fit.
    Type: Application
    Filed: November 28, 2022
    Publication date: May 30, 2024
    Inventor: Gerald A. Niznick
  • Publication number: 20240016584
    Abstract: Dental implants include a threaded body portion having a textured surface, and an externally smooth neck portion having one or more depth gauge lines to guide insertion into a patient's jawbone, with the neck portion projecting above the jawbone, allowing the gingival tissue to be sutured over the implant, or with the neck portion projecting through the gingival tissue.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 18, 2024
    Inventor: Gerald A. Niznick
  • Patent number: 9697748
    Abstract: A dental implant two-piece fixture mount has an implant fixture-mount base portion at its distal end and a snap-on, separate, separable top piece at its proximal end.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: July 4, 2017
    Inventors: Gerald A. Niznick, Ines M. Aravena
  • Publication number: 20170165035
    Abstract: A dental implant two-piece fixture mount includes an implant fixture-mount base portion at its distal end, and a snap-on, separate, separable top piece at its proximal end, the top-piece including an insertion-tool-engaging surface and a distal cylindrical skirt with a plurality of protrusions on the skirt's inner surface, and a distal insertion projection, the fixture-mount base portion including a separable proximal portion that includes a groove near the bottom of the separable proximal portion for engagement with the protrusions, a longitudinal through passage to receive a fixation screw for attachment of the fixture mount base portion to a dental implant, and that includes an internal, multi-sided region to anti-rotationally engage the distal insertion projection.
    Type: Application
    Filed: February 6, 2017
    Publication date: June 15, 2017
    Applicant: Implant Direct Sybron International LLC
    Inventors: Gerald A. Niznick, Ines M. Aravena
  • Patent number: 9456881
    Abstract: A dental attachment assembly has an abutment portion at the proximal end of a one-piece dental implant (an “abutment portion”), or is an abutment for attachment to a dental implant or to a bar joining two or more dental implants, and a two-part assembly including a metal cap for placement in/attachment to a dental appliance. The cap includes a flanged skirt that projects from the top surface of the cap. A second part, a plastic insert, snaps firmly inside the cap.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: October 4, 2016
    Inventor: Gerald A. Niznick
  • Patent number: 9452028
    Abstract: An externally-threaded, endosseous dental implant includes an elongated body that is straight or tapered, and that includes external, distal regular threads, external micro-threads proximal to the regular threads, and external micro-grooves proximal to the micro-threads, with an internal passage in the body of the implant, the passage including internal threads, or internal multi-sided adaptor-engaging surfaces, or both.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: September 27, 2016
    Inventor: Gerald A. Niznick
  • Patent number: 8118596
    Abstract: A one-piece, screw-receiving, externally-threaded endosseous dental implant includes a body portion with external threading and, at its proximal end, an unthreaded, cylindrical portion including a retentive groove for engaging a complementary transfer component or comfort cap; a one-or two-piece screw-receiving implant abutment for attachment to a one or two-piece implant, including a retentive groove for engaging a complementary transfer component or comfort cap; and a fixture mount for insertion in a one-piece implant, that can be sectioned with the distal end used to extend the implant height.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: February 21, 2012
    Inventor: Gerald A. Niznick
  • Publication number: 20100311013
    Abstract: A one-piece, screw-receiving, externally-threaded endosseous dental implant includes a body portion with external threading and, at its proximal end, an unthreaded, cylindrical portion including a retentive groove for engaging a complementary transfer component or comfort cap; a one-or two-piece screw-receiving implant abutment for attachment to a one or two-piece implant, including a retentive groove for engaging a complementary transfer component or comfort cap; and a fixture mount for insertion in a one-piece implant, that can be sectioned with the distal end used to extend the implant height.
    Type: Application
    Filed: March 9, 2010
    Publication date: December 9, 2010
    Inventor: Gerald A. Niznick
  • Patent number: 7785107
    Abstract: Endosseous dental implants include external threads, and, within an internal passage inside the body of the implant, a lead-in bevel, 8-sided abutment-engaging surfaces, distally positioned 6-sided wrench-engaging surfaces, and internal threading distal to both the 8-sided and 6-sided surfaces, and fixture mounts and abutments including male projections to engage the 6-sided wrench-engaging surfaces inside the implants.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: August 31, 2010
    Inventor: Gerald A. Niznick
  • Patent number: 7699613
    Abstract: A one-piece, screw-receiving, externally-threaded endosseous dental implant includes a body portion with external threading and, at its proximal end, an unthreaded, cylindrical portion including a retentive groove for engaging a complementary transfer component or comfort cap; a one- or two-piece screw-receiving implant abutment for attachment to a one or two-piece implant, including a retentive groove for engaging a complementary transfer component or comfort cap; and a fixture mount for insertion in a one-piece implant, that can be sectioned with the distal end used to extend the implant height.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: April 20, 2010
    Inventor: Gerald A. Niznick
  • Patent number: 7677891
    Abstract: Endosseous dental implants tapered over at least part of their length, include two separate portions, a shorter proximal region with half the distance and half the depth between adjacent peaks of multiple lead threads as the longer distal region which has half the number of multiple lead threads as in the proximal region.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: March 16, 2010
    Assignee: Implant Direct Int'l, Inc.
    Inventor: Gerald A. Niznick
  • Patent number: 7396231
    Abstract: An endosseous dental implants include a flared implant extender with an internal passage and with an unthreaded external surface that tapers downwardly from the proximal end of the extender toward its distal end that has a size and shape appropriate to cover the top surface of the implant.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: July 8, 2008
    Inventor: Gerald A. Niznick
  • Patent number: 7108510
    Abstract: Endosseous dental implants include an at least partly, externally-threaded body portion, an internal cavity or shaft with an opening to the cavity or shaft at the top surface of the implant, and, in the internal cavity or shaft, a threaded portion, and a two part interlock chamber contiguous to said threaded portion including multi-lobed surfaces in a first part, and a plurality of lobes, slots or grooves in a second part.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: September 19, 2006
    Inventor: Gerald A. Niznick
  • Patent number: 7014464
    Abstract: A multi-part abutment for use with an endosseous dental implant includes a first part with a tapered portion at its proximal end adapted to accept a dental restoration and an optional transfer cap, a distally-positioned external multi-lobed or other wrench-engaging portion, an inwardly-projecting non-circular bevel extending partly or entirely around the first part, connecting the proximal and wrench-engaging portions. The first part has an internal through passage with an internal projection or threads or both. The second abutment part, a screw, has a proximal region to engage the internal projection(s) or threads or both of the first part, and a threaded shank to engage internal threads in an endosseous dental implant.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: March 21, 2006
    Inventor: Gerald A. Niznick
  • Patent number: 6287117
    Abstract: Root-form, endosseous dental implants for insertion into an opening in the jawbone of a patient include a body portion, a neck and/or neck/abutment portion above the body portion, and an internally-threaded shaft; a separate optional implant extender for placement atop the implant with a top surface that mimics the top surface of the implant, and includes a longitudinal passage that receives a healing screw, and a healing screw with a threaded distal end portion to pass through the longitudinal passage, engage the internal threads of the implant and hold the extender to the implant, or to cover the opening to the internally-threaded shaft of the implant where the optional extender is omitted.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: September 11, 2001
    Assignee: Sulzer Dental Inc.
    Inventor: Gerald A. Niznick
  • Patent number: 6244867
    Abstract: A multi-part abutment adapted for use with dental implants such as cylindrical-shaped endosseous dental implants having an internal opening or passage with an internal, non-circular shape at the top, either internally or externally, includes part one that engages the opening or passage in, or projection at the top, of the implant at the distal end of part one, and fits into abutment part two, at the top end of part one. Part two has at its distal end a multi-sided cavity that interdigitates with a multi-sided periphery or other connector on part one so that part two can be placed in a plurality of positions over part one. At the top end of part two is a prosthesis-engaging or prosthesis-forming projection which may be at an angle to the longitudinal axis of the implant, or lie on the longitudinal axis of the implant.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: June 12, 2001
    Assignee: Sulzer Dental Inc.
    Inventors: Ines M. Aravena, Gerald A. Niznick
  • Patent number: 5989028
    Abstract: One-piece, root-form, endosseous dental implants include, in a single implant, a body portion for insertion into an opening in the jawbone of a patient, a neck portion above the body portion, and an abutment portion above the neck portion. The abutment portion includes a peripheral shoulder and an opening into an internally-threaded shaft. The implant may also include internal or external wrench-engaging surfaces.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: November 23, 1999
    Assignee: Core-Vent Corporation
    Inventor: Gerald A. Niznick
  • Patent number: 5885079
    Abstract: Endosseous dental implants having generally cylindrical-shaped or tapering bodies and, in some cases, external threads or ribs over a substantial portion of their external surface, may include internal or external wrench-engaging surfaces at the proximal end portion and include, below a relatively smooth proximal end or neck portion, an external transition zone with a rougher surface, and a body portion having greater surface roughness than the transition zone, or, on the body portion, an HA or TPS coating, to promote attachment of the implant to bone tissue when the implant is placed in a passage formed in bone tissue to receive the implant.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: March 23, 1999
    Assignee: Core-Vent Corporation
    Inventor: Gerald A. Niznick