B41M 5/28
Using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or
Official title: using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating {(B41M5/38271 takes precedence)}
B41M5/28 (Using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or) appears on 479 US grants and 335 published applications in this corpus.
Search patents in B41M- Granted patents
- 479
- Published applications
- 335
- Assignees
- 211
- Inventors
- 864
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 12 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 19 | 0 |
| 1997 | 15 | 0 |
| 1998 | 20 | 0 |
| 1999 | 14 | 0 |
| 2000 | 23 | 0 |
| 2001 | 18 | 8 |
| 2002 | 20 | 19 |
| 2003 | 15 | 18 |
| 2004 | 15 | 14 |
| 2005 | 9 | 11 |
| 2006 | 6 | 8 |
| 2007 | 12 | 11 |
| 2008 | 6 | 15 |
| 2009 | 7 | 12 |
| 2010 | 7 | 19 |
| 2011 | 7 | 28 |
| 2012 | 10 | 13 |
| 2013 | 24 | 17 |
| 2014 | 17 | 18 |
| 2015 | 9 | 16 |
| 2016 | 15 | 24 |
| 2017 | 24 | 16 |
| 2018 | 18 | 7 |
| 2019 | 8 | 10 |
| 2020 | 8 | 8 |
| 2021 | 6 | 13 |
| 2022 | 6 | 8 |
| 2023 | 5 | 8 |
| 2024 | 5 | 6 |
| 2025 | 6 | 4 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Laser-imageable composition21 Jul 2026US 12,686,225 B2Datalase Ltd.
- Expandable microsphere, markable article, marked article, and method of making the same28 Apr 2026US 12,612,527 B23M Innovative Properties Company
- Crosstalk reduction of microcapsule imaging system7 Apr 2026US 12,596,302 B2Polaroid IP B. V.
- System for marking a coated ophthalmic lens20 Jan 2026US 12,528,262 B2Transitions Optical, Inc.
- Drawing system and drawing method11 Nov 2025US 12,466,196 B2Sony Group Corporation
- Laser marking of containers1 Oct 2026US 2026/0296083 A1Krones AG
- Activatable and thermally sensitive media elements with light scattering layer27 Aug 2026US 2026/0249635 A1Zebra Technologies Corporation
- Device customization30 Jul 2026US 2026/0217043 A1Lenovo Global Technology (United States) Inc.
- Methods, systems, apparatuses, and devices for facilitating creating labels for labeling intravenous infusion lines30 Apr 2026US 2026/0116112 A1Vigilant Software
- Thermal transfer ribbons and direct thermal print media including environmental exposure indicator material11 Dec 2025US 2025/0376599 A1Zebra Technologies Corporation
Most cited
By later US patents
- Optical storage identification card and read/write system234US 4,663,518 APolaroid Corporation · 1987
- Method of laser marking151US 4,861,620 AMitsubishi Denki Kabushiki Kaisha · 1989
- Thermal imaging method148US 4,602,263 APolaroid Corporation · 1986
- Thermochromic materials119US 4,425,161 A1984
- Thermochromic textile material114US 4,681,791 AThe Pilot Ink Co., Ltd. · 1987