B41K 1/00
Portable hand-operated devices without means for supporting or locating the articles to
Official title: Portable hand-operated devices without means for supporting or locating the articles to be stamped, i.e. hand stamps; Inking devices or other accessories therefor
B41K1/00 (Portable hand-operated devices without means for supporting or locating the articles to) appears on 632 US grants and 408 published applications in this corpus.
Search patents in B41K- Granted patents
- 632
- Published applications
- 408
- Assignees
- 230
- Inventors
- 795
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 14 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 3 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 15 | 0 |
| 1990 | 8 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 11 | 0 |
| 1994 | 11 | 0 |
| 1995 | 17 | 0 |
| 1996 | 12 | 0 |
| 1997 | 18 | 0 |
| 1998 | 36 | 0 |
| 1999 | 25 | 0 |
| 2000 | 21 | 0 |
| 2001 | 21 | 6 |
| 2002 | 14 | 15 |
| 2003 | 11 | 10 |
| 2004 | 17 | 18 |
| 2005 | 20 | 17 |
| 2006 | 17 | 28 |
| 2007 | 7 | 16 |
| 2008 | 12 | 17 |
| 2009 | 5 | 18 |
| 2010 | 11 | 27 |
| 2011 | 15 | 15 |
| 2012 | 18 | 12 |
| 2013 | 8 | 19 |
| 2014 | 7 | 15 |
| 2015 | 15 | 21 |
| 2016 | 20 | 21 |
| 2017 | 16 | 18 |
| 2018 | 18 | 25 |
| 2019 | 13 | 14 |
| 2020 | 15 | 12 |
| 2021 | 12 | 19 |
| 2022 | 13 | 10 |
| 2023 | 10 | 13 |
| 2024 | 8 | 10 |
| 2025 | 8 | 7 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B41K 1/36Details366
- B41K 1/02Portable hand-operated devices without means for supporting or locating the articles to186
- B41K 1/08Portable hand-operated devices without means for supporting or locating the articles to115
- B41K 1/32Portable hand-operated devices without means for supporting or locating the articles to47
- B41K 1/006Pocket stamps28
- B41K 1/003Combined with other articles25
- B41K 1/22Portable hand-operated devices without means for supporting or locating the articles to25
- B41K 1/26Portable hand-operated devices without means for supporting or locating the articles to17
Recent patents
- Stamp with a cutting device and method for using a cutting device23 Jun 2026US 12,661,814 B2Trodat GmbH
- Stamp having a tilting holding frame19 May 2026US 12,629,950 B2Sun Same Enterprises Co., Ltd.
- Stamp with cutting element21 Apr 2026US 12,605,957 B2Sun Same Enterprises Co., Ltd.
- Intelligent seal mold device having multifunctional areas and method for generating image of seal mold having multifunctional areas3 Mar 2026US 12,567,978 B2
- Stamp handle having transparent housing24 Feb 2026US 12,558,910 B1Sun Same Enterprises Co., Ltd.
- Self-inking stamp with reinforced crossbar20 Aug 2026US 2026/0241731 A1Colop Stempelerzeugung Skopek Gesellschaft M.B.H. & Co. KG.
- Multifunctional opening tool11 Jun 2026US 2026/0158685 A1
- Stamp with cutting element19 Feb 2026US 2026/0048603 A1Sun Same Enterprises Co., Ltd.
- Stamp19 Feb 2026US 2026/0048604 A1Sun Same Enterprises Co., Ltd.
- Craftwork tools and kits19 Feb 2026US 2026/0048605 A1My Sweet Petunia, Inc.
Most cited
By later US patents
- Stamp for a lithographic process159US 5,817,242 AInternational Business Machines.Corp · 1998
- Lithographic surface or thin layer modification102US 5,925,259 AInternational Business Machines Corporation · 1999
- Ink stamp rack96US 5,772,050 A1998
- Self-inking stamp56US 6,761,114 B2Trodat GmbH · 2004
- Stamp holding clip and rack therefor48US 4,534,471 ASchwaab, Inc. · 1985