Michael E. Shin

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Gaithersburg, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Carpet cleaning machine rental kiosk
- Patent number 9,135,767
- Issue date Sep 15, 2015
- Rug Doctor, LLC
- David A. Kropp
- G07 - CHECKING-DEVICES
Information Patent Grant
Carpet cleaning machine rental kiosk
- Patent number 8,483,871
- Issue date Jul 9, 2013
- Rug Doctor, Inc.
- David A. Kropp
- G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

Information Patent Application
Carpet Cleaning Machine Rental Kiosk
- Publication number 20130270979
- Publication date Oct 17, 2013
- David A. Kropp
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Carpet Cleaning Machine Rental Kiosk
- Publication number 20120130535
- Publication date May 24, 2012
- RUG DOCTOR, INC.
- David A. Kropp
- G06 - COMPUTING CALCULATING COUNTING