B28
Working cement, clay, or stone
B28 (Working cement, clay, or stone) appears on 14,497 US grants and 13,619 published applications in this corpus.
Search patents in B28- Granted patents
- 14,497
- Published applications
- 13,619
- Assignees
- 5,788
- Inventors
- 25,446
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 193 | 0 |
| 1977 | 187 | 0 |
| 1978 | 203 | 0 |
| 1979 | 161 | 0 |
| 1980 | 180 | 0 |
| 1981 | 182 | 0 |
| 1982 | 167 | 0 |
| 1983 | 155 | 0 |
| 1984 | 157 | 0 |
| 1985 | 162 | 0 |
| 1986 | 155 | 0 |
| 1987 | 184 | 0 |
| 1988 | 179 | 0 |
| 1989 | 213 | 0 |
| 1990 | 224 | 0 |
| 1991 | 217 | 0 |
| 1992 | 231 | 0 |
| 1993 | 225 | 0 |
| 1994 | 206 | 0 |
| 1995 | 189 | 0 |
| 1996 | 208 | 0 |
| 1997 | 227 | 0 |
| 1998 | 277 | 0 |
| 1999 | 258 | 0 |
| 2000 | 244 | 0 |
| 2001 | 274 | 85 |
| 2002 | 278 | 311 |
| 2003 | 246 | 343 |
| 2004 | 283 | 411 |
| 2005 | 205 | 438 |
| 2006 | 237 | 420 |
| 2007 | 188 | 437 |
| 2008 | 185 | 464 |
| 2009 | 182 | 490 |
| 2010 | 309 | 502 |
| 2011 | 300 | 408 |
| 2012 | 287 | 409 |
| 2013 | 319 | 452 |
| 2014 | 363 | 476 |
| 2015 | 369 | 631 |
| 2016 | 392 | 632 |
| 2017 | 466 | 782 |
| 2018 | 450 | 780 |
| 2019 | 580 | 714 |
| 2020 | 606 | 735 |
| 2021 | 547 | 744 |
| 2022 | 488 | 733 |
| 2023 | 498 | 607 |
| 2024 | 567 | 657 |
| 2025 | 551 | 566 |
| 2026 | 343 | 392 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
Recent patents
- Compressed bone composition and methods of use thereof6 Oct 2026US 12,752,040 B2LifeNet Health
- Method of producing manufactured object and manufactured object6 Oct 2026US 12,752,457 B2Canon Kabushiki Kaisha
- Hybrid mold vibration6 Oct 2026US 12,752,458 B2Besser Company
- Calibrated concrete moisture control system6 Oct 2026US 12,752,459 B2Holcombe CVI, LLC
- Machine for processing slabs6 Oct 2026US 12,752,460 B2
- Paste deposition system8 Oct 2026US 2026/0307152 A1Tritone Technologies Ltd.
- Additive manufacturing of surfaces with anti-corrosion and/or anti-fouling characteristics8 Oct 2026US 2026/0307292 A1Chevron U.S.A.Inc.
- Rapid-set construction material for 3d printing of sustainable infrastructure8 Oct 2026US 2026/0307293 A1Oregon State University
- Building boards and methods for manufacturing same8 Oct 2026US 2026/0307294 A1CertainTeed Gypsum, Inc.
- Unit and method for thermal treatment of slabs made of stone or stone-like agglomerate material and plant for manufacturing slabs made of stone or stone-like agglomerate material8 Oct 2026US 2026/0307295 A1
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
- Three-dimensional printing techniques1,084US 5,204,055 AMassachusetts Institute of Technology · 1993
- Three-dimensional printing techniques723US 5,387,380 AMassachusetts Institute of Technology · 1995
- Vehicle tracking, communication and fleet management system700US 6,611,755 B1Trimble Navigation Limited · 2003
- Fabricating multi-part assemblies597US 9,815,118 B1Desktop Metal, Inc. · 2017