US5015528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized bed diamond particle growth
Assignee: Advanced Refractory Technologies Inc
•
Filing: 1988-03-22
•
Granted: 1991-05-14
•
Expires: 2008-03-22
Abstract
Abstract A process is provided for forming synthetic diamond by vapor deposition of a carbon gas source in the presence of atomic hydrogen on a substrate contained in a fluidized bed. The diamond may be overcoated by vapor deposition of a non-diamond material.
Inventors
- 👤 John M. Pinneo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:52
CPC Classifications
C; C30; C30B; C30B25/00; C30B25/02; C30B25/18; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44; C30B29/00; C30B29/02; C30B29/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
40 words
A composition comprising diamond-containing particles, said particles comprising a synthetic diamond core and an outer layer of a non-diamond material selected from the group consisting of silicon nitride, silicon, boron nitride, aluminum nitride, aluminum oxide, beryllium oxide and zirconium oxide.
Claim 2
Dependent Claim
40 words
A composition comprising diamond-containing particles, said particles comprising a synthetic diamond core and an outer layer of a non-diamond material selected from the group consisting of silicon nitride, silicon, boron nitride, aluminum nitride, aluminum oxide, beryllium oxide and zirconium oxide.
Claim 3
Dependent Claim
13 words
A composition according to claim 1 wherein said non-diamond material comprises boron nitride.
Claim 4
Dependent Claim
13 words
A composition according to claim 1 wherein said non-diamond material comprises aluminum nitride.
Claim 5
Dependent Claim
24 words
A composition according to claim 1 wherein said non-diamond material is selected from the group consisting of silicon nitride, aluminum oxide and zirconium oxide.
References Cited (Backward Citations)
GB665472A
Cited
US2947608A
Cited
US2941248A
Cited
US2947609A
Cited
US2947610A
Cited
US2947611A
Cited
US3030188A
Cited
US3030187A
Cited
US3142539A
Cited
US3175885A
Cited
US3371996A
Cited
US3520667A
Cited
US3630677A
Cited
US3630678A
Cited
US3630679A
Cited
US3617347A
Cited
US3661526A
Cited
US3705937A
Cited
US3714334A
Cited
US4104441A
Cited
US4228142A
Cited
US4352787A
Cited
US4606738A
Cited
JPS58135117A
Cited
JPS60231498A
Cited
US4859493A
Cited
US4902652A
Cited
JPH01151097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |