Rocroi Jean-Pierre
Patent Applications and Registrations
Patent applications and USPTO patent grants for Rocroi Jean-Pierre.The latest application filed is for "method and system for acquisition and separation of the effects of electromagnetic fields to predict earthquakes".
- Rocroi Jean-Pierre - Fresnes FR
- Rocroi; Jean-Pierre - Massy FR
| Patent | Date |
|---|---|
| Method and system for acquisition and separation of the effects of electromagnetic fields to predict earthquakes Grant 4,884,030 - Naville , et al. November 28, 1 | 1989-11-28 |
| Method of geophysical prospection using transient currents Grant 4,417,210 - Rocroi , et al. November 22, 1 | 1983-11-22 |
| Electromagnetic subsoil prospecting process using an asymptotic low frequency range Grant 4,258,322 - Rocroi , et al. March 24, 1 | 1981-03-24 |
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