B27
Working or preserving wood or similar material
Official title: Working or preserving wood or similar material; nailing or stapling machines in general
B27 (Working or preserving wood or similar material) appears on 15,777 US grants and 11,647 published applications in this corpus.
Search patents in B27- Granted patents
- 15,777
- Published applications
- 11,647
- Assignees
- 4,970
- Inventors
- 21,296
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 326 | 0 |
| 1977 | 278 | 0 |
| 1978 | 236 | 0 |
| 1979 | 189 | 0 |
| 1980 | 250 | 0 |
| 1981 | 322 | 0 |
| 1982 | 258 | 0 |
| 1983 | 301 | 0 |
| 1984 | 301 | 0 |
| 1985 | 261 | 0 |
| 1986 | 298 | 0 |
| 1987 | 295 | 0 |
| 1988 | 249 | 0 |
| 1989 | 328 | 0 |
| 1990 | 321 | 0 |
| 1991 | 346 | 0 |
| 1992 | 316 | 0 |
| 1993 | 278 | 0 |
| 1994 | 271 | 0 |
| 1995 | 276 | 0 |
| 1996 | 262 | 0 |
| 1997 | 288 | 0 |
| 1998 | 353 | 0 |
| 1999 | 370 | 0 |
| 2000 | 353 | 0 |
| 2001 | 347 | 112 |
| 2002 | 319 | 389 |
| 2003 | 395 | 448 |
| 2004 | 326 | 495 |
| 2005 | 269 | 526 |
| 2006 | 304 | 579 |
| 2007 | 263 | 460 |
| 2008 | 213 | 497 |
| 2009 | 224 | 458 |
| 2010 | 349 | 474 |
| 2011 | 337 | 465 |
| 2012 | 293 | 360 |
| 2013 | 312 | 370 |
| 2014 | 277 | 446 |
| 2015 | 266 | 404 |
| 2016 | 319 | 397 |
| 2017 | 336 | 472 |
| 2018 | 327 | 488 |
| 2019 | 429 | 519 |
| 2020 | 431 | 491 |
| 2021 | 391 | 517 |
| 2022 | 372 | 492 |
| 2023 | 348 | 493 |
| 2024 | 363 | 552 |
| 2025 | 403 | 421 |
| 2026 | 238 | 322 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
- B27BSaws for wood or similar material5,389
- B27NManufacture by dry processes of articles, with or without organic binding agents2,500
- B27GAccessory machines or apparatus for working wood or similar materials2,127
- B27LRemoving bark or vestiges of branches1,628
- B27CPlaning, drilling, milling, turning or universal machines for wood or similar material1,531
- B27FDovetailed work1,497
- B27KProcesses, apparatus or selection of substances for impregnating, staining, dyeing, bleaching of1,481
- B27MWorking of wood not provided for in subclasses b27b - b27l1,452
Recent patents
- Power tool6 Oct 2026US 12,752,345 B2Robert Bosch GmbH
- Timber processing and firewood splitting machine6 Oct 2026US 12,752,353 B2Tajfun Plani Proizvodnje Trojev D.O.O.
- Power tool shoe and dust port6 Oct 2026US 12,752,355 B2Black & Decker Inc.
- Wood shaping method6 Oct 2026US 12,752,454 B2Creaholic S.A.
- Collapsible woven basket and method of making same6 Oct 2026US 12,752,455 B2Seville Classics Inc.
- Collection receptacle for workpiece particles, handheld power tool assembly, particle collection assembly, handheld power tool system, and use of a guide rail8 Oct 2026US 2026/0307192 A1Festool GmbH
- Method for operating an emergency brake unit for a motor-driven tool, monitoring unit, and emergency brake unit8 Oct 2026US 2026/0307193 A1Festool GmbH
- Electric Power Tool Safety Device8 Oct 2026US 2026/0307229 A1
- Machine tool assembly and lighting system for a machine tool assembly8 Oct 2026US 2026/0307230 A1Festool GmbH
- Handheld work apparatus and method for operating a handheld work apparatus8 Oct 2026US 2026/0307289 A1Andreas Stihl AG & CO.KG
Most cited
By later US patents
- Self-filling staple fastener1,488US 5,772,379 A1998
- Electric stapler1,473US 7,083,073 B2Max Co., Ltd. · 2006
- Staple refill, stapler and cartridge1,456US 7,748,587 B2Max Co., Ltd. · 2010
- Electric stapler and operation method of electric stapler1,022US 8,371,393 B2Max Co., Ltd. · 2013
- Multi-axis panel saw964US 7,779,737 B2The Chisel Works, LLC. · 2010