B26B 21/16
Involving blades with only one cutting edge
Official title: involving blades with only one cutting edge (B26B21/22 - B26B21/38 take precedence)
B26B21/16 (Involving blades with only one cutting edge) appears on 84 US grants and 89 published applications in this corpus.
Search patents in B26B- Granted patents
- 84
- Published applications
- 89
- Assignees
- 23
- Inventors
- 104
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 2 |
| 2005 | 2 | 4 |
| 2006 | 3 | 3 |
| 2007 | 1 | 2 |
| 2008 | 2 | 4 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 7 |
| 2016 | 3 | 5 |
| 2017 | 7 | 8 |
| 2018 | 3 | 7 |
| 2019 | 4 | 1 |
| 2020 | 4 | 5 |
| 2021 | 5 | 9 |
| 2022 | 5 | 4 |
| 2023 | 8 | 7 |
| 2024 | 3 | 5 |
| 2025 | 4 | 6 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Smart straight razor28 Apr 2026US 12,611,789 B2
- Razor blade17 Mar 2026US 12,576,547 B2The Gillette Company
- Shaving device20 Jan 2026US 12,528,215 B2Insignia IP Development Company, LLC
- Shaving device29 Jul 2025US 12,370,709 B2Insignia IP Development Company, LLC
- Shaving device29 Jul 2025US 12,370,710 B2Insignia IP Development Company, LLC
- Shaving device with novel blade release mechanism16 Jul 2026US 2026/0200113 A1
- Shaving Device21 May 2026US 2026/0138297 A1Insignia IP Development Company, LLC
- Razor blade5 Feb 2026US 2026/0034693 A1The Gillette Company
- Shaving Device20 Nov 2025US 2025/0353199 A1Insignia IP Development Company, LLC
- Shaving Device20 Nov 2025US 2025/0353200 A1Insignia IP Development Company, LLC
Most cited
By later US patents
- Razor with a movable shaving head102US 6,880,253 B1Bic-Violex SA · 2005
- Concave, convex safety razor69US 5,199,173 AHegemann Research Corporation · 1993
- Shaving device69US 9,259,846 B12016
- Razor with removably mounted pivotal cartridge61US 4,281,455 AWilkinson Sword Limited · 1981
- Razor for shaving a face having pseudofolliculitis barbae55US 4,741,103 AWarner-Lambert Company · 1988