Assignee
HELLER STEPHEN J
US·1 granted patent·2 pending applications·101 citations·filing 1988–2012
Top patents by PatentIndex Score
3 records- 0178US4921257ASoccer training deviceHELLER STEPHEN J·Filed 1988·Granted May 1, 1990·101 cites·14 claims
- 0240US2009177313A1Portable cement mixing apparatusHELLER STEPHEN J·Filed 2008·Application pending·0 cites
- 0333US2012230147A1Portable cement mixing apparatusHELLER STEPHEN J·Filed 2012·Application pending·0 cites
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