B23F 13/003
Making worms of conical or barrel shape
Official title: {making worms of conical or barrel shape}
B23F13/003 (Making worms of conical or barrel shape) appears on 2 US grants and 3 published applications in this corpus.
Search patents in B23F- Granted patents
- 2
- Published applications
- 3
- Assignees
- 1
- Inventors
- 2
- Latest grant
- 1 Sep 2015
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| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
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Recent patents
- Method of making barrel-shaped worm-like tool18 Jun 2015US 2015/0165589 A1Mitsubishi Heavy Industries, Ltd.
- Method for manufacturing screw-shaped tool17 Jul 2014US 2014/0199921 A1Mitsubishi Heavy Industries, Ltd.
- Method of making barrel-shaped worm-like tool4 Oct 2012US 2012/0252317 A1Mitsubishi Heavy Industries, Ltd.
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By later US patents