Mary Lou Casadevall-Keller

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Sarasota, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Air resistance device
- Patent number 10,369,408
- Issue date Aug 6, 2019
- HALCYON RESEARCH, INC.
- Dana Kesslen Keller
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
AIR RESISTANCE DEVICE
- Publication number 20170189749
- Publication date Jul 6, 2017
- Halcyon Research, Inc. DBA Harmonica Techs
- Dana Kesslen Keller
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
PULMONARY HARMONICA DEVICE AND METHOD OF USING A PULMONARY HARMONIC...
- Publication number 20150360079
- Publication date Dec 17, 2015
- Halcyon Research, Inc. DBA Harmonica Techs
- Dana Kesslen Keller
- G10 - MUSICAL INSTRUMENTS ACOUSTICS