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Patent features:
US Patent 4,960,381
Internal Hex Implants
US Patent 6,287,117
Implant Extender
US Patent 5,427,527
Tapered/Straight
Insertion Protocol
US Patent 5,334,024
Friction-Fit™ Abutments
US Patent 5,076,788
Bio-Vent® Implant
US Patent 5,433,606
Tapered External
Hex Implants
US Patent 4,431,416
Core-Vent® Implant
US Patent 5,281,140
Angled Abutments
US Patent 5,062,800
Fixture Mount
Transfer Packaging
US Patent 5,885,079
Dual Transition™
Selective Surface™
US Patent 5,571,017
Selective Surface
US Patent 5,575,650
Split-Point, Twist
Tri-Spade Drills
Patent listings:
  1. Endosseous dental implants including a healing screw and an optional
  2. Multi-part, multi-positionable abutment for use with dental implants
  3. Non-submergible, one-part, root-form endosseous dental implants
  4. Selective surface, endosseous dental implants
  5. Insertion tool/healing collar/abutment
  6. Cutting drill for endosseous implants
  7. Selective surface, externally-threaded endosseous dental implant
  8. Interlocking, multi-part endosseous dental implant systems
  9. Dental implant method of installation
  10. Transfer abutment
  11. Multi-part, multi-positionable abutment for use with dental implants
  12. Coping insert for use with a dental implant
  13. Dental implant including plural anchoring means
  14. Grooved, cylindrical dental implant anchoring means
  15. Tiltable, adjustable, insert for a dental implant
  16. Dental implant handle, and dental implant package including a dental
  17. Dental implant including plural anchoring means
  18. Angled abutment for endosseous implants
  19. Screw-type dental implant anchor
  20. Coping insert for use with a dental implant
  21. Bendable adapter for dental implant
  22. Connector for overdenture
  23. Endosseous dental implant system for overdenture retention, crown and

Patented Features of the Implant System Developed by Dr. Niznick 1982-1990

TRADEMARKS: Core-Vent, SwissPlus, Screw-Vent, Advent, Bio-Vent, Micro-Vent, Friction-Fit, Dual Transition Selective Surface are now Implant Trademarks of Zimmer Dental Implant Company 1900 Aston Avenue, Carlsbad, CA 92008