Class B28D : WORKING STONE OR STONE-LIKE MATERIALS
Subclass 1/16: Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor (fine working of gems, jewels, crystals B28D 5/00; working by grinding or polishing B24; devices or means for dressing or conditioning abrasive surfaces B24B 53/00) by turning
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10126730 | Method for machining a surface of an optical lens | Oct 28, 13 | Nov 13, 18 | Essilor International (Compagnie General D'Optique |
| 9962770 | Method for producing ceramic honeycomb body | Mar 26, 13 | May 08, 18 | Hitachi Metals LTD |
| 8893702 | Ductile mode machining methods for hard and brittle components of plasma processing apparatuses | Feb 20, 13 | Nov 25, 14 | LAM RESEARCH CORPORATION |
| 6712061 | Portable apparatus for working, shaping and polishing stone and other hard materials | Feb 20, 02 | Mar 30, 04 | Not available |
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