Piras; Bernard
Patent Applications and Registrations
Patent applications and USPTO patent grants for Piras; Bernard.The latest application filed is for "percussion apparatus".
- Piras; Bernard - Vernaison FR
- Piras; Bernard - Charly FR
| Patent | Date |
|---|---|
| Rock breaking device Grant 10,974,379 - Piras April 13, 2 | 2021-04-13 |
| Hydraulic percussion device Grant 10,926,394 - Piras February 23, 2 | 2021-02-23 |
| Percussion Apparatus App 20190351538 - PIRAS; Bernard | 2019-11-21 |
| Rock Breaking Device App 20180345470 - Piras; Bernard | 2018-12-06 |
| Hydraulic Percussion Device App 20180297187 - PIRAS; Bernard | 2018-10-18 |
| Percussion device actuated by a pressurized non-compressible fluid Grant 8,167,055 - Piras May 1, 2 | 2012-05-01 |
| Percussion equipment driven by a pressurized incompressible fluid Grant 8,151,900 - Piras April 10, 2 | 2012-04-10 |
| Percussion Device Actuated By A Pressurized Non-compressible Fluid App 20100084152 - Piras; Bernard | 2010-04-08 |
| Percussion Equipment Driven by a Pressurized Incompressible Fluid App 20090250234 - Piras; Bernard | 2009-10-08 |
| Percussion hydraulic apparatus Grant 6,901,842 - Piras June 7, 2 | 2005-06-07 |
| Hydraulic percussion apparatus Grant 6,829,975 - Piras December 14, 2 | 2004-12-14 |
| Percussion hydraulic apparatus App 20040050243 - Piras, Bernard | 2004-03-18 |
| Hydraulic percussion apparatus App 20030183402 - Piras, Bernard | 2003-10-02 |
| Hydraulic percussion apparatus Grant 5,392,865 - Piras February 28, 1 | 1995-02-28 |
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