David E. Mroczka

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Babylon, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Backpack with collapsible stretcher and collapsible wheel assembly
- Patent number 8,789,730
- Issue date Jul 29, 2014
- David E. Mroczka
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Grant
Toy hand grenade with timer mechanism
- Patent number 8,733,334
- Issue date May 27, 2014
- David E. Mroczka
- F41 - WEAPONS
Information Patent Grant
Toy hand grenade
- Patent number 8,469,011
- Issue date Jun 25, 2013
- Jack Mroczka
- F42 - AMMUNITION BLASTING

Patents Applicationslast 30 patents

Information Patent Application
Carrier with Collapsible Wheel Assembly
- Publication number 20140232129
- Publication date Aug 21, 2014
- David E. Mroczka
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
Toy Hand Grenade
- Publication number 20120266852
- Publication date Oct 25, 2012
- Jack Mroczka
- F42 - AMMUNITION BLASTING
Information Patent Application
Toy Hand Grenade with Timer Mechanism
- Publication number 20120266853
- Publication date Oct 25, 2012
- David E. Mroczka
- F42 - AMMUNITION BLASTING
Information Patent Application
Backpack with collapsible stretcher and collapsible wheel assembly
- Publication number 20100237111
- Publication date Sep 23, 2010
- David E. Mroczka
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE