B28D 1/32
Methods and apparatus specially adapted for working materials which can easily be
Official title: Methods and apparatus specially adapted for working materials which can easily be split, e.g. mica, slate, schist
B28D1/32 (Methods and apparatus specially adapted for working materials which can easily be) appears on 16 US grants and 15 published applications in this corpus.
Search patents in B28D- Granted patents
- 16
- Published applications
- 15
- Assignees
- 16
- Inventors
- 40
- Latest grant
- 27 Jul 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 2 | 2 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Wafer and wafer producing method27 Jul 2021US 11,072,042 B2Disco Corporation
- Laser preheating control method and device6 Oct 2020US 10,792,767 B2Metal Industries Research & Development Centre
- Shape memory alloy rock splitters (SMARS)9 Jun 2020US 10,675,781 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Rock face splitting apparatus and method14 Aug 2018US 10,046,480 B2Pavestone, LLC
- Block splitter assembly and method of producing wall blocks27 Mar 2018US 9,925,692 B2Keystone Retaining Wall Systems, Inc.
- Method of making mica rock paper or decorative mica rock paper6 Feb 2025US 2025/0042058 A1
- Wafer and wafer producing method16 Jul 2020US 2020/0223015 A1Disco Corporation
- Laser preheating control method and device16 May 2019US 2019/0143457 A1Metal Industries Research & Development Centre
- Rock face splitting apparatus and method9 Aug 2018US 2018/0222086 A1Pavestone, LLC
- Process for the production of stone material manufactured articles1 Feb 2018US 2018/0029406 A1Aros S.R.L.
Most cited
By later US patents
- Method and device for separating a plate of material, in particular semiconductor material, into two wafers53US 6,468,879 B1S. O. I. Tec Silicon on Insulator Technologies · 2002
- Method and apparatus for slicing crystals21US 4,184,472 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1980
- Apparatus for separating snapstrates into individual hybrid substrates15US 4,195,758 AGTE Automatic Electric Laboratories Incorporated · 1980
- Shingle cutter7US 6,412,382 B12002
- System and method of delaminating a layered silicate material by supercritical fluid treatment6US 6,469,073 B1Ford Global Technologies, LLC · 2002