8 Utility Patents
#83 in Franklin, MA
#13,641 in Massachusetts
#251,823 in US
#514,027 in the World
Forward Citations = 18
Company Filing History:

Powertap Hydrogen Fueling Corp.
Aspen Products Group, Inc.
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#83 in Franklin, MA
#13,641 in Massachusetts
#251,823 in US
#514,027 in the World
Company Filing History:

Get your Inventor Badge Today