B26B 21/02
Involving unchangeable blades
Official title: involving unchangeable blades
B26B21/02 (Involving unchangeable blades) appears on 99 US grants and 90 published applications in this corpus.
Search patents in B26B- Granted patents
- 99
- Published applications
- 90
- Assignees
- 28
- Inventors
- 150
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 3 |
| 2016 | 1 | 3 |
| 2017 | 1 | 15 |
| 2018 | 4 | 16 |
| 2019 | 4 | 7 |
| 2020 | 12 | 8 |
| 2021 | 7 | 6 |
| 2022 | 6 | 7 |
| 2023 | 3 | 8 |
| 2024 | 5 | 2 |
| 2025 | 7 | 4 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Razor30 Dec 2025US D1,108,016 S1Kai R&D Center Co., Ltd. · Design
- Shaving head4 Nov 2025US 12,459,143 B2BIC Violex Single Member S.A.
- Razor heads5 Aug 2025US 12,377,561 B2BIC Violex Single Member S.A.
- Razor cartridge comprising mechanochromic layer5 Aug 2025US 12,377,563 B2BIC Violex Single Member S.A.
- Razor cartridge8 Jul 2025US 12,350,850 B2The Gillette Company
- Personal care devices and cosmetic compositions27 Aug 2026US 2026/0249498 A1Pathak Holdings LLC
- Shaving assembly having a retention member13 Aug 2026US 2026/0233425 A1The Gillette Company
- Razor1 Jan 2026US 2026/0001248 A1Kai R&D Center Co., Ltd.
- Razor cartridge2 Oct 2025US 2025/0303596 A1The Gillette Company
- Shaving razor system24 Jul 2025US 2025/0236034 A1The Gillette Company
Most cited
By later US patents
- Four blade bi-directional razor structure with flexible guard system163US 6,161,288 A2000
- Bi-directional razor structures and systems107US 5,522,137 A1996
- In-line razor device with twin pivoting heads95US 6,434,828 B12002
- In-line shaving razors with twin pivoting heads91US 6,141,875 A2000
- Bi-directional razor device67US 5,343,622 A1994