Richard Kronfeld

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Variable resistance serial hybrid electric bicycle
- Patent number 9,956,880
- Issue date May 1, 2018
- RahtMobile, LLC
- Richard Kronfeld
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Variable resistance serial hybrid electric bicycle
- Patent number 9,505,310
- Issue date Nov 29, 2016
- RahtMobile, LLC
- Richard Kronfeld
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
VARIABLE RESISTANCE SERIAL HYBRID ELECTRIC BICYCLE
- Publication number 20170158061
- Publication date Jun 8, 2017
- RahtMobile, LLC
- Richard Kronfeld
- B60 - VEHICLES IN GENERAL
Information Patent Application
VARIABLE RESISTANCE SERIAL HYBRID ELECTRIC BICYCLE
- Publication number 20140353055
- Publication date Dec 4, 2014
- Richard Kronfeld
- B60 - VEHICLES IN GENERAL
Information Patent Application
HUMAN-RECHARGEABLE ELECTRIC VEHICLE
- Publication number 20130081892
- Publication date Apr 4, 2013
- Richard Kronfeld
- B60 - VEHICLES IN GENERAL