C01B 17/78
Characterised by the catalyst used
Official title: characterised by the catalyst used
C01B17/78 (Characterised by the catalyst used) appears on 91 US grants and 44 published applications in this corpus.
Search patents in C01B- Granted patents
- 91
- Published applications
- 44
- Assignees
- 60
- Inventors
- 170
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 14 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 2 | 4 |
| 2019 | 3 | 5 |
| 2020 | 5 | 3 |
| 2021 | 3 | 1 |
| 2022 | 1 | 4 |
| 2023 | 1 | 3 |
| 2024 | 1 | 4 |
| 2025 | 0 | 1 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrogen sulfide conversion21 Jul 2026US 12,686,930 B2Saudi Arabian Oil Company
- Integrated sulfur recovery and hydrogen production process26 May 2026US 12,637,353 B2
- Method for manufacturing sulphuric acid19 May 2026US 12,630,424 B2Ocp SA
- Method of removing hydrogen peroxide from sulfuric acid5 May 2026US 12,617,681 B2Jingbao Chemical Co., Ltd.
- Process to convert reduced sulfur species and water into hydrogen and sulfuric acid28 Apr 2026US 12,612,701 B2California Institute of Technology
- Method and system for treating sulfur dioxide containing stream by catalytic oxidation and acid aqueous absorption12 Feb 2026US 2026/0042058 A1Saudi Arabian Oil Company
- Method for manufacturing electronic-grade sulfuric acid8 Jan 2026US 2026/0008675 A1Kanto-Ppc Inc.
- A process for conversion of aqueous hydrogen sulfide to sulfuric acid15 May 2025US 2025/0154005 A1Topsoe A/S
- Production of sulfuric acid employing an o2 rich stream19 Dec 2024US 2024/0417256 A1Topsoe A/S
- Preparation of alkali salt solutions28 Nov 2024US 2024/0391788 A1LI-Technology Pty Ltd.
Most cited
By later US patents
- Nanotechnology for engineering the performance of substances140US 6,531,704 B2NanoProducts Corporation · 2003
- Method and device for transforming chemical compositions120US 6,214,195 B1Nanomaterials Research Corporation · 2001
- Field assisted transformation of chemical and material compositions99US 6,267,864 B1Nanomaterials Research Corporation · 2001
- Process of converting ethylbenzene to styrene using a graphite nanocatalysts72US 7,307,195 B2Catalytic Materials, LLC · 2007
- Sulphur dioxide converter and pollution arrester system65US 4,419,331 A1983