Class B21H : MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
Subclass 1/14: Making articles shaped as bodies of revolution (rolling tubes B21B 17/00-B21B 25/00) balls, rollers, cone rollers, or like bodies
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11779999 | Method for producing a connecting element, connecting element, and rolling tool | Nov 19, 18 | Oct 10, 23 | Arnold Umformtechnik GmbH & Co. KG |
| 9452503 | Green ball grinding method, ceramic sphere fabrication method, and grinding apparatus | May 05, 15 | Sep 27, 16 | NTN CORPORATION |
| 8887396 | Manufacturing method of roller for manufacturing patterned retarder film | May 30, 12 | Nov 18, 14 | BENQ MATERIALS CORPORATION |
| 8356555 | Projectile made of steel softened to the core | May 21, 07 | Jan 22, 13 | Centre de Recherches Metallurgiques asbl—Centrum voor de Research in de Metallurgie vzw, CENTRE DE RECHERCHES METALLURGIQUES ASBL - CENTRUM VOOR DE RESEARCH IN DE METALLURGIE VZW, |
| 8113031 | Crimping tool | Jan 05, 09 | Feb 14, 12 | WEZAG GMBH WERKZEUGFABRIK |
| 5206992 | Compressible roller | Jun 12, 92 | May 04, 93 | AMERICAN ROLLER COMPANY, LLC |
| 5199168 | Non-slip tachometer roller | Oct 03, 91 | Apr 06, 93 | QUANTUM CORPORATION |
| 5161306 | Roll for use in heat treating furnace and method of producing the same | Sep 06, 91 | Nov 10, 92 | TOCALO CO., LTD. |
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