Robert Louis Clark, JR.

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Johnston, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tilt switch employing graphite
- Patent number 7,934,321
- Issue date May 3, 2011
- Egresson, LLC
- Michael David Johnson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Device to reduce the incidence of aspiration
- Patent number 7,562,458
- Issue date Jul 21, 2009
- Robert Louis Clark, Jr.
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
TWO-AXIS INCLINOMETER HEAD OF BED ELEVATION ALARM AND METHOD OF OPE...
- Publication number 20110234395
- Publication date Sep 29, 2011
- EGRESSON, LLC
- Michael David Johnson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
HAND WASHING REMINDER DEVICE AND METHOD
- Publication number 20100073162
- Publication date Mar 25, 2010
- Michael David Johnson
- G08 - SIGNALLING
Information Patent Application
DEVICE TO REDUCE THE INCIDENCE OF ASPIRATION
- Publication number 20090299229
- Publication date Dec 3, 2009
- Michael David Johnson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
TILT SWITCH EMPLOYING GRAPHITE
- Publication number 20090223787
- Publication date Sep 10, 2009
- Michael David Johnson
- H01 - BASIC ELECTRIC ELEMENTS