B28D 1/00
Working stone or stone-like materials
Official title: Working stone or stone-like materials, e.g. brick, concrete {or glass}, not provided for elsewhere; Machines, devices, tools therefor (fine working of gems, jewels, crystals B28D5/00; working by grinding or polishing B24; devices or means for dressing or conditioning abrasive surfaces B24B53/00)
B28D1/00 (Working stone or stone-like materials) appears on 2,689 US grants and 2,402 published applications in this corpus.
Search patents in B28D- Granted patents
- 2,689
- Published applications
- 2,402
- Assignees
- 1,142
- Inventors
- 4,317
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 24 | 0 |
| 1978 | 27 | 0 |
| 1979 | 24 | 0 |
| 1980 | 33 | 0 |
| 1981 | 22 | 0 |
| 1982 | 20 | 0 |
| 1983 | 16 | 0 |
| 1984 | 28 | 0 |
| 1985 | 29 | 0 |
| 1986 | 31 | 0 |
| 1987 | 37 | 0 |
| 1988 | 46 | 0 |
| 1989 | 52 | 0 |
| 1990 | 65 | 0 |
| 1991 | 57 | 0 |
| 1992 | 52 | 0 |
| 1993 | 50 | 0 |
| 1994 | 49 | 0 |
| 1995 | 32 | 0 |
| 1996 | 51 | 0 |
| 1997 | 51 | 0 |
| 1998 | 51 | 0 |
| 1999 | 40 | 0 |
| 2000 | 51 | 0 |
| 2001 | 56 | 14 |
| 2002 | 59 | 54 |
| 2003 | 59 | 92 |
| 2004 | 66 | 89 |
| 2005 | 62 | 90 |
| 2006 | 75 | 110 |
| 2007 | 51 | 105 |
| 2008 | 57 | 114 |
| 2009 | 45 | 100 |
| 2010 | 70 | 107 |
| 2011 | 75 | 84 |
| 2012 | 48 | 72 |
| 2013 | 75 | 103 |
| 2014 | 81 | 98 |
| 2015 | 78 | 117 |
| 2016 | 81 | 88 |
| 2017 | 75 | 112 |
| 2018 | 65 | 136 |
| 2019 | 105 | 91 |
| 2020 | 92 | 87 |
| 2021 | 65 | 93 |
| 2022 | 54 | 100 |
| 2023 | 59 | 101 |
| 2024 | 57 | 107 |
| 2025 | 72 | 77 |
| 2026 | 49 | 61 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B28D 1/02Working stone or stone-like materials: by sawing1,338
- B28D 1/18Working stone or stone-like materials: by milling503
- B28D 1/22Working stone or stone-like materials: by cutting480
- B28D 1/14Working stone or stone-like materials: by boring or drilling220
- B28D 1/26Working stone or stone-like materials: by impact tools120
- B28D 1/003Multipurpose machines84
- B28D 1/30To form contours, i.e. curved surfaces, irrespective of the method of working81
- B28D 1/006Artificial ageing of stones50
All 13 subgroupsShow fewer
Recent patents
- Machine for processing slabs6 Oct 2026US 12,752,460 B2
- Non-rotating bit for cutting tool22 Sep 2026US 12,741,396 B2Caterpillar Paving Products Inc.
- Hand-held electrically powered disc cutter with specific mass ratios15 Sep 2026US 12,734,727 B2Husqvarna AB
- Extended scooped trenching blade1 Sep 2026US 12,723,367 B2Evolution Drilling Tools, Inc.
- Wireless control of auxiliary equipment25 Aug 2026US 12,715,100 B2Husqvarna AB
- Machining assembly1 Oct 2026US 2026/0295685 A1Tractive AB
- Material removal manufacture, assembly, and method of assembly1 Oct 2026US 2026/0297868 A1Dynatech Systems, Inc.
- Machine for bevel ("miter") cutting a slab with finished face down for making a farm sink and related method24 Sep 2026US 2026/0284931 A1Poseidon Industries, Inc.
- Hand-Held Electrically Powered Work Tool with Air Leaking Out in a Slot Between the Battery and Battery Compartment24 Sep 2026US 2026/0284932 A1Husqvarna AB
- Saw blade assembly for a floor milling tool24 Sep 2026US 2026/0284933 A1Husqvarna AB
Most cited
By later US patents
- Process for the production of thin semiconductor material films1,233US 5,374,564 ACommissariat A L' Energie Atomique · 1994
- Composite polycrystalline diamond compact502US 4,604,106 ASmith International, Inc. · 1986
- Manual tool for removing material from brittle and/or non-ductile stock416US 5,733,074 AHilti Aktiengesellschaft · 1998
- Cutting elements for rotary drill bits409US 5,135,061 A1992
- Device with ultrasound adapter382US 6,731,047 B2Hilti Aktiengesellschaft · 2004