B24B 9/16
Of diamonds
Official title: of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs (for grinding sharp pointed diamonds or sapphires B24B19/16)
B24B9/16 (Of diamonds) appears on 100 US grants and 61 published applications in this corpus.
Search patents in B24B- Granted patents
- 100
- Published applications
- 61
- Assignees
- 54
- Inventors
- 193
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 4 |
| 2004 | 2 | 3 |
| 2005 | 0 | 4 |
| 2006 | 1 | 4 |
| 2007 | 2 | 3 |
| 2008 | 3 | 3 |
| 2009 | 2 | 2 |
| 2010 | 1 | 6 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 3 | 2 |
| 2014 | 2 | 3 |
| 2015 | 3 | 2 |
| 2016 | 2 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 3 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 4 |
| 2024 | 5 | 3 |
| 2025 | 0 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B24B 9/161Dops, dop holders22
- B24B 9/162By bruting, i.e. rubbing two precious stones against each other13
- B24B 9/163Of gem stones or convex surfaces, cabochons11
- B24B 9/168Grinding peripheral6
- B24B 9/167With means for turning and positioning the gem stones5
- B24B 9/165For grinding cavities in gem stones3
- B24B 9/164Of diamond tools2
- B24B 9/166Using heat2
Recent patents
- Gemstone cut analysis8 Sep 2026US 12,731,326 B2Gemological Institute of America, Inc. (GIA)
- Automated diamond polishing methods and systems5 May 2026US 12,617,055 B2Zalirian Ltd.
- Polycrystalline diamond compact cutting elements, methods of forming same and earth-boring tools17 Dec 2024US 12,168,281 B2Baker Hughes Oilfield Operations LLC
- Method for grinding single-crystal diamond24 Sep 2024US 12,097,589 B2Huaqiao University
- Automatic gemstone polishing robot20 Feb 2024US 11,904,433 B2Freedom Automation Solutions LLP
- Method for forming micro-pattern on surface of product, and product having micro-pattern formed thereon by applying method18 Sep 2025US 2025/0289258 A1Hankuk University of Foreign Studies Research & Business Foundation
- System of Grinding Jewel, and Method Using Same15 May 2025US 2025/0153301 A1Guangzhou Xiying Garment Accessories Co., Ltd.
- Method and apparatus for processing diamond surface9 Jan 2025US 2025/0010427 A1Element Six Technologies Limited
- Generation of gem cuts28 Nov 2024US 2024/0391055 A1Gemological Institute of America, Inc. (GIA)
- Gemstone cut analysis28 Nov 2024US 2024/0394961 A1Gemological Institute of America, Inc. (GIA)
Most cited
By later US patents
- Method for making a sintered superhard prosthetic joint component57US 7,569,176 B2Diamicron, Inc. · 2009
- Gemstone working apparatus41US 5,503,592 ATurbofan Ltd. · 1996
- Use of a metal and Sn as a solvent material for the bulk crystallization and sintering of diamond to produce biocompatbile biomedical devices39US 7,678,325 B2Diamicron, Inc. · 2010
- Method of polishing and figuring diamond and other superhard material surfaces31US 5,458,827 ARockwell International Corporation · 1995
- Method of cutting gemstones and product30US 5,072,549 A1991