C01B 17/76
By contact processes
Official title: by contact processes
C01B17/76 (By contact processes) appears on 294 US grants and 144 published applications in this corpus.
Search patents in C01B- Granted patents
- 294
- Published applications
- 144
- Assignees
- 157
- Inventors
- 570
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 13 | 0 |
| 1978 | 21 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 1 |
| 2003 | 4 | 7 |
| 2004 | 2 | 3 |
| 2005 | 3 | 3 |
| 2006 | 1 | 2 |
| 2007 | 2 | 4 |
| 2008 | 2 | 6 |
| 2009 | 4 | 4 |
| 2010 | 9 | 8 |
| 2011 | 6 | 5 |
| 2012 | 3 | 6 |
| 2013 | 6 | 8 |
| 2014 | 8 | 9 |
| 2015 | 6 | 4 |
| 2016 | 5 | 1 |
| 2017 | 2 | 5 |
| 2018 | 3 | 7 |
| 2019 | 7 | 11 |
| 2020 | 10 | 9 |
| 2021 | 6 | 4 |
| 2022 | 4 | 10 |
| 2023 | 7 | 6 |
| 2024 | 2 | 8 |
| 2025 | 3 | 5 |
| 2026 | 9 | 7 |
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
- Process for removing sulfur containing compounds from gas containing at least one sulfur containing compound10 Sep 2026US 2026/0264009 A1Sulzer Management AG
- Methods and systems for producing sulfur-containing products11 Jun 2026US 2026/0159389 A1Applied Technology Limited Partnership
- Process and plant for a permanent storage of phosphogypsum14 May 2026US 2026/0132042 A1Metso Metals Oy
- System and methods for improving a performance of a production plant7 May 2026US 2026/0124591 A1BASF SE
- Corrosion resistant nozzle and lid for an adiabatic gas cooler9 Apr 2026US 2026/0097409 A1Cg Thermal, LLC
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