Berkley, Michigan
United States
4
2008-05-29
4
2012-10-30
These are the the leading inventors for applications assigned to Zen Design Group, Ltd.:
Zen Design Group, Ltd. based in Berkley, US has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
Dynamo powered amusement device
#2 | 2007-04-26 ✅ Patent 7,679,320 granted on 2010-03-16Amusement apparatus operative as a dynamo battery charger
#3 | 2006-02-07 ✅ Patent 6,995,542 granted on 2006-02-07Battery charger amusement device
#4 | 2005-04-12 ✅ Patent 6,877,875 granted on 2005-04-12Canted head-mounted light
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