Robert A. Olsen

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Palatine, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Swivel coupling for illuminated dental handpiece
- Patent number 4,600,384
- Issue date Jul 15, 1986
- Sybron Corporation
- Robert A. Olsen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Low torsional restraint instrument handpiece hose
- Patent number 4,553,938
- Issue date Nov 19, 1985
- Sybron Corporation
- Robert A. Olsen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Swivel hose coupling for dental handpiece or the like
- Patent number 4,541,802
- Issue date Sep 17, 1985
- Sybron Corporation
- Robert A. Olsen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Modular selector valve assembly
- Patent number 4,144,644
- Issue date Mar 20, 1979
- American Hospital Supply Corporation
- Robert A. Olsen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Pressure-responsive speed control for dental handpieces
- Patent number 4,074,434
- Issue date Feb 21, 1978
- American Hospital Supply Corporation
- Milton R. Nielsen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE