Frank S. Janson

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Rocky River, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Intervertebral spacer
- Patent number 5,961,554
- Issue date Oct 5, 1999
- Frank S Janson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Top-entry rod retainer
- Patent number 5,346,493
- Issue date Sep 13, 1994
- AcroMed Corporation
- Terrence M. Stahurski
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Top-entry rod retainer
- Patent number 5,257,993
- Issue date Nov 2, 1993
- AcroMed Corporation
- Marc A. Asher
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Connector for a spinal column corrective device
- Patent number 5,242,446
- Issue date Sep 7, 1993
- AcroMed Corporation
- Arthur D. Steffee
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE