Intellectual Property

Greenleaf Corporation has a long history of innovation in the cutting tool industry being one of the first to develop and market indexable cutting tool inserts in the 1960s and the first to develop and market whisker-reinforced ceramic inserts in 1985. Since then Greenleaf’s innovative developments have continued with Greenleaf presently owning in excess of 70 pending or issued patents in North America, Europe, and Asia and numerous proprietary tools, tooling, and materials in its product offering.

Issued Patents

Ball Nose End Mill and Insert

171364 — Singapore
338092 — India
2370224 — Belgium, Europe, France, Germany, Ireland, Italy, Poland, Spain, Sweden, Switzerland, Turkey, United Kingdom
2,744,524 — Canada
8,177,459 B2 — USA
1161572B — Hong Kong
2011/03812 — South Africa
MY-153134-A — Malaysia
PI0922831 — Brazil
ZL 2009 8 0154806.3 — China

Cutting Tool Including Cutting Insert Retaining and Adjusting Mechanism

9,827,621 B2 — USA

Rail Re-Profiling Method and Apparatus

2,905,065 — Canada
3,044,200 — Canada
6728033 — Japan
9,617,691 — USA
9,834,891 — USA
10,352,001 — USA
1256989B — Hong Kong
ZL 2014 8 0015672.8 — China
ZL 2018 1 s0290231.9 — China

Slotting Cutter and Inserts for Same

328325 — Mexico
3351326 — Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Hungary, Ireland, Italy, Norway, Poland, Spain, Sweden, Switzerland, Turkey, United Kingdom
2,869,800 — Canada
8,267,625 — USA
9,073,131 — USA