Marvin Hinckley Howell

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Salt Lake City, UT, US

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Patents Grantslast 30 patents

Information Patent Grant
In-ground spa installation
- Patent number 8,869,469
- Issue date Oct 28, 2014
- Bullfrog International, L.C.
- David J. Ludlow
- E04 - BUILDING
Information Patent Grant
Spas and bathing systems with upgradeable and interchangeable jet s...
- Patent number 8,661,576
- Issue date Mar 4, 2014
- David J. Ludlow
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
IN-GROUND SPA INSTALLATION
- Publication number 20130152297
- Publication date Jun 20, 2013
- David J. Ludlow
- E04 - BUILDING
Information Patent Application
SPAS AND BATHING SYSTEMS WITH UPGRADEABLE AND INTERCHANGEABLE JET S...
- Publication number 20110225720
- Publication date Sep 22, 2011
- Stephen M. Fleischer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE