B41K 3/44
Means for handling copy matter
B41K3/44 (Means for handling copy matter) appears on 91 US grants and 39 published applications in this corpus.
Search patents in B41K- Granted patents
- 91
- Published applications
- 39
- Assignees
- 52
- Inventors
- 138
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 3 | 5 |
| 2017 | 4 | 3 |
| 2018 | 3 | 6 |
| 2019 | 3 | 6 |
| 2020 | 6 | 4 |
| 2021 | 5 | 4 |
| 2022 | 4 | 1 |
| 2023 | 0 | 1 |
| 2024 | 3 | 3 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Craftwork tools and kits21 Oct 2025US 12,447,764 B2My Sweet Petunia, Inc.
- Stamp tool24 Dec 2024US 12,172,454 B2Parric Ningbo Stationary and Gifts Mfg. Co., Ltd.
- Rotating mechanism for stamping ring patterns and a stamp tool thereof13 Aug 2024US 12,059,912 B2Parric Ningbo Stationery and Gifts Mfg. Co., Ltd.
- Craftwork tools and kits2 Apr 2024US 11,945,246 B2My Sweet Petunia, Inc.
- Beer barrel printing equipment6 Dec 2022US 11,518,161 B2Ningbo Major Draft Beer Equipment Co., Ltd
- Craftwork tools and kits19 Feb 2026US 2026/0048605 A1My Sweet Petunia, Inc.
- Craftwork tools and kits11 Jul 2024US 2024/0227425 A1My Sweet Petunia, Inc.
- A Rotating Mechanism for Stamping Ring Patterns and a Stamp Tool Thereof18 Apr 2024US 2024/0123747 A1Parric Ningbo Stationery and Gifts Mfg. Co., Ltd.
- A Stamp Tool7 Mar 2024US 2024/0075763 A1Parric Ningbo Stationery and Gifts Mfg. Co., Ltd.
- Craftwork tools and kits31 Aug 2023US 2023/0271439 A1My Sweet Petunia, Inc.
Most cited
By later US patents