D06P 1/221
Reducing systems
Official title: {Reducing systems; Reducing catalysts}
D06P1/221 (Reducing systems) appears on 39 US grants and 22 published applications in this corpus.
Search patents in D06P- Granted patents
- 39
- Published applications
- 22
- Assignees
- 28
- Inventors
- 99
- Latest grant
- 1 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 2 |
| 2003 | 3 | 4 |
| 2004 | 3 | 2 |
| 2005 | 1 | 3 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Electrochemical reactor and its cleaning or regeneration1 Oct 2024US 12,104,262 B2Sedo Engineering SA
- Synergistically active composition12 Sep 2023US 11,753,526 B2L. BrüGgemann GmbH & Co. KG
- Leucodye (such as leucoindigo) as dispersing aid12 Sep 2023US 11,753,730 B2Sedo Engineering SA
- Reduction dyeing for indigo using bacterial strain7 Jul 2020US 10,704,193 B2Industry Foundation of Chonnam National University
- Method for dyeing modacrylic/cellulosic blend fabrics26 May 2020US 10,662,580 B1Mount Vernon Mills, Inc.
- Apparatus with dual modes of use for dyeing of fabrics and yarns8 May 2025US 2025/0146200 A1Master S.R.L.
- Electrochemical reactor and its cleaning or regeneration24 Feb 2022US 2022/0056595 A1Sedo Engineering SA
- Leucodye (such as leucoindigo) as dispersing aid3 Feb 2022US 2022/0033980 A1Sedo Engineering SA
- A synergistically active composition2 Jan 2020US 2020/0002508 A1L. BrüGgemann GmbH & Co. KG
- Reduction dyeing for indigo using bacterial strain6 Sep 2018US 2018/0251938 A1Industry Foundation of Chonnam National University
Most cited
By later US patents
- Method for marking a water-absorptive contact lens: dyeing dry lens with a mark using reduced vat dye and then making the dye insoluble25US 5,244,470 AMenicon Co., Ltd. · 1993
- Sulphinic acid derivatives, method for producing them, and their use18US 6,211,400 B1L. BrüGgemann GmbH & Co. KG · 2001
- Dyeing cellulose-containing textile material with hydrogenated indigo17US 5,586,992 ABASF SE · 1996
- Dyeing and printing of cellulosic fibre materials with vat dyes with mono- or di-hydroxyacetone as reducing agent12US 4,950,306 ACiba-Geigy Corporatioin · 1990
- Stabilized solutions of sodium dithionite10US 4,100,098 AOlin Corporation · 1978