Thornhill
Canada
2
2016-11-10
2
2018-04-17
These are the the leading inventors for applications assigned to Risi Stone Inc.:
Risi Stone Inc. based in Thornhill, CA has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
Method and mold for manufacturing an interlocking concrete retaining wall block
#2 | 2015-04-09 ✅ Patent 9,145,683 granted on 2015-09-29Prefabricated pillar slab system
Also check out Risi Stone Inc.'s (Thornhill, Canada) applicant profile with 2 patent applications submitted.
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