Hewitt; Roger W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hewitt; Roger W..The latest application filed is for "tip for a plasma arc torch".
- Hewitt; Roger W. - Plainfield NH
| Patent | Date |
|---|---|
| Tips and contact members having ridges for use in a contact start plasma arc torch Grant 6,933,461 - Horner-Richardson , et al. August 23, 2 | 2005-08-23 |
| Torch, lead and connector assembly Grant D489,079 - Horner-Richardson , et al. April 27, 2 | 2004-04-27 |
| Tip for a plasma arc torch App 20040011771 - Horner-Richardson, Kevin ; et al. | 2004-01-22 |
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