David R. Freriks

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Hinckley, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Biohazard mask suitable for civilians
- Patent number 7,152,600
- Issue date Dec 26, 2006
- Biokidz USA NFP
- David Richard Freriks
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Biohazard Mask Filter
- Publication number 20120291787
- Publication date Nov 22, 2012
- LINCOLN ADVANCED TECHNOLOGIES, LLC
- David R. Freriks
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Biohazard Mask Filter
- Publication number 20110132373
- Publication date Jun 9, 2011
- LINCOLN ADVANCED TECHNOLOGIES, LLC
- David R. Freriks
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
BIOHAZARD MASK SUITABLE FOR CIVILIANS
- Publication number 20060201511
- Publication date Sep 14, 2006
- Biokidz USA
- David Richard Freriks
- A62 - LIFE-SAVING FIRE-FIGHTING