B41M 5/284
Organic thermochromic compounds
Official title: {Organic thermochromic compounds}
B41M5/284 (Organic thermochromic compounds) appears on 118 US grants and 100 published applications in this corpus.
Search patents in B41M- Granted patents
- 118
- Published applications
- 100
- Assignees
- 58
- Inventors
- 207
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 11 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 1 |
| 2003 | 3 | 2 |
| 2004 | 0 | 6 |
| 2005 | 2 | 1 |
| 2006 | 2 | 5 |
| 2007 | 4 | 4 |
| 2008 | 1 | 12 |
| 2009 | 5 | 5 |
| 2010 | 5 | 7 |
| 2011 | 4 | 13 |
| 2012 | 5 | 8 |
| 2013 | 10 | 6 |
| 2014 | 6 | 4 |
| 2015 | 2 | 7 |
| 2016 | 6 | 2 |
| 2017 | 2 | 3 |
| 2018 | 4 | 2 |
| 2019 | 1 | 1 |
| 2020 | 3 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 0 | 2 |
| 2024 | 2 | 3 |
| 2025 | 4 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Drawing system and drawing method11 Nov 2025US 12,466,196 B2Sony Group Corporation
- Compositions27 May 2025US 12,311,688 B2Datalase Ltd.
- Heat transfer agents in an image-forming composition29 Apr 2025US 12,285,961 B2Datalase Ltd.
- Inkless printer using photosensitive ink28 Jan 2025US 12,208,627 B2Khalifa University of Science and Technology
- Time-temperature indicator based on increased thermal reactivity of a diacetylene upon melt recrystallization22 Oct 2024US 12,123,858 B2JP Laboratories, Inc.
- Compositions28 Aug 2025US 2025/0269675 A1Datalase Ltd.
- Time-temperature indicator based on increased thermal reactivity of a diacetylene upon melt recrystallization19 Dec 2024US 2024/0418691 A1JP Laboratories, Inc.
- Curing indicator printing coating12 Sep 2024US 2024/0301220 A1Actega Terra GmbH
- Drawing system and drawing method23 May 2024US 2024/0165983 A1Sony Group Corporation
- A composition2 Feb 2023US 2023/0037133 A1Datalase Ltd.
Most cited
By later US patents
- Raman-active taggants and their recognition82US 6,610,351 B2Quantag Systems, Inc. · 2003
- Thermochromic microencapsulated pigments45US 6,494,950 B1The Pilot Ink Co., Ltd. · 2002
- Time-temperature indicators activated with direct thermal printing and methods for their production45US 6,524,000 B1NCR Corporation · 2003
- Compounds for use as chemical vapor deposition precursors, thermochromic materials light-emitting diodes, and molecular charge-transfer salts and methods of making these compounds43US 6,103,459 AMidwest Research Institute · 2000
- Digital information recording media and method of using same42US 5,645,964 AKimberly-Clark Corporation · 1997