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1. (WO1998048944) METHOD FOR ENHANCING THE COLOR OF MINERALS USEFUL AS GEMSTONES
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/048944 International Application No.: PCT/US1998/008232
Publication Date: 05.11.1998 International Filing Date: 24.04.1998
Chapter 2 Demand Filed: 16.11.1998
IPC:
A44C 17/00 (2006.01) ,C04B 41/50 (2006.01) ,C04B 41/51 (2006.01) ,C30B 33/00 (2006.01)
A HUMAN NECESSITIES
44
HABERDASHERY; JEWELLERY
C
JEWELLERY; BRACELETS; OTHER PERSONAL ADORNMENTS; COINS
17
Gems or the like
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
41
After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
45
Coating or impregnating
50
with inorganic materials
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
41
After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
45
Coating or impregnating
50
with inorganic materials
51
Metallising
C CHEMISTRY; METALLURGY
30
CRYSTAL GROWTH
B
SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
33
After-treatment of single crystals or homogeneous polycrystalline material with defined structure
Applicants: POLLAK, Richard[US/US]; US
Inventors: POLLAK, Richard; US
Agent: REITER, Stephen, E.; Gray Cary Ware & Freidenrich Suite 1600 4365 Executive Drive San Diego, CA 92121, US
Priority Data:
08/845,70925.04.1997US
Title (EN) METHOD FOR ENHANCING THE COLOR OF MINERALS USEFUL AS GEMSTONES
(FR) TECHNIQUE PERMETTANT D'EXALTER LA COULEUR DE MINERAUX UTILISES COMME PIERRES PRECIEUSES
Abstract:
(EN) In accordance with the present invention, there are provided methods for enhancing the color of minerals useful as gemstones. Invention methods are relatively inexpensive to carry out, avoid the use of hazardous materials, and require no specialized equipment.
(FR) Cette invention a trait à des techniques permettant d'exalter la couleur de minéraux utilisés comme pierres précieuses. Ces techniques sont d'une mise en oeuvre peu coûteuse, ne font pas intervenir des matières dangereuses et n'exigent pas un équipement spécialisé.
Designated States: BR, CN, JP, US
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)