Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12173800 | Through-hardened valve seat for hydraulic fracturing | Steven J. Metz | 2024-12-24 |
| 10639752 | Valve seat extraction device | — | 2020-05-05 |
| 7274794 | Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in single wave sound environment | — | 2007-09-25 |
| 7157064 | Method for treatment of flue gas cleaning products | — | 2007-01-02 |
| 6857162 | Cleaning and/or treatment device | — | 2005-02-22 |
| 6482371 | Process for separation of heavy metals and halogen from waste material or residue | — | 2002-11-19 |
| 6369551 | Method and apparatus for the supply of energy to a hearing device | Enrique Marcello Blumenkrantz | 2002-04-09 |
| 6274050 | Method for treatment of halogen-containing waste material | — | 2001-08-14 |
| 6225792 | Method and apparatus for the supply of energy to a hearing device | Enrique Marcello Blumenkrantz | 2001-05-01 |
| 6124518 | Method for treatment of halogen-containing waste material | — | 2000-09-26 |
| 5907235 | Method and apparatus for generating a supply voltage for a hearing device | Enrique Marcelo Blumenkrantz | 1999-05-25 |
| 5719528 | Hearing aid device | Enrique Marcelo Blumenkrantz | 1998-02-17 |
| 4605035 | Double seat valve | Gunnar Lundquist, Stig Lading | 1986-08-12 |
| 4578184 | Process for non-destructive separation of mixtures containing plastics scrap | — | 1986-03-25 |