B41K 1/50
Stamping surfaces impregnated with ink, or made of material leaving a mark
Official title: Stamping surfaces impregnated with ink, or made of material leaving a mark after stamping contact
B41K1/50 (Stamping surfaces impregnated with ink, or made of material leaving a mark) appears on 99 US grants and 74 published applications in this corpus.
Search patents in B41K- Granted patents
- 99
- Published applications
- 74
- Assignees
- 48
- Inventors
- 164
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 3 |
| 2003 | 1 | 1 |
| 2004 | 2 | 3 |
| 2005 | 4 | 2 |
| 2006 | 2 | 4 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 1 | 3 |
| 2010 | 2 | 6 |
| 2011 | 2 | 3 |
| 2012 | 3 | 4 |
| 2013 | 2 | 6 |
| 2014 | 1 | 6 |
| 2015 | 6 | 7 |
| 2016 | 6 | 4 |
| 2017 | 4 | 3 |
| 2018 | 4 | 6 |
| 2019 | 3 | 1 |
| 2020 | 3 | 1 |
| 2021 | 2 | 3 |
| 2022 | 0 | 1 |
| 2023 | 3 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Assembly for replicating flexible stamps from a master18 Mar 2025US 12,251,950 B2Morphotonics Holding B.V.
- Architected stamps for liquid transfer printing8 Aug 2023US 11,718,115 B2National Technology & Engineering Solutions of Sandia, LLC
- Hand-operated stamp having a tilting element20 Jun 2023US 11,679,611 B2Color Stempelerzeugung Skopek Gesellschaft M.B.H. & Co. KG.
- Cosmetic stamp and method of using same28 Mar 2023US 11,612,231 B2Kiss Nail Products, Inc.
- Ink composition for reversibly thermochromic stamp and stamp25 May 2021US 11,015,076 B2Kabushiki Kaisha Pilot Corporation
- Assembly for replicating flexible stamps from a master21 Sep 2023US 2023/0294442 A1Morphotonics Holding B.V.
- Hand-operated stamp having a tilting element24 Mar 2022US 2022/0088954 A1Colop Stempelerzeugung Skopek Gesellschaft M.B.H. & Co. KG.
- Method for Transposing Multi-Event Sports Meet Information on Skin with a Rotating Type Stamp1 Jul 2021US 2021/0197602 A1
- Architected stamps for liquid transfer printing27 May 2021US 2021/0155023 A1National Technology & Engineering Solutions of Sandia, LLC
- Cosmetic stamp configuration and method for using the same13 May 2021US 2021/0137246 A1Kiss Nail Products, Inc.
Most cited
By later US patents
- Ink stamp apparatus and kit38US 4,986,175 ABoehringer Laboratories, Inc. · 1991
- Rubber stamp29US 4,289,070 ACosco Industries, Inc. · 1981
- Method for preparing a marking structure29US 5,049,432 APorelon, Inc. · 1991
- Wall decorating paint applying device28US 4,030,414 A1977
- Pocket hand stamp27US 6,834,584 B1M&R Marking Systems, Inc. · 2004