B01D 2257/556
Organic compounds
B01D2257/556 (Organic compounds) appears on 77 US grants and 114 published applications in this corpus.
Search patents in B01D- Granted patents
- 77
- Published applications
- 114
- Assignees
- 83
- Inventors
- 287
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 3 |
| 2013 | 2 | 3 |
| 2014 | 0 | 5 |
| 2015 | 0 | 5 |
| 2016 | 1 | 6 |
| 2017 | 8 | 9 |
| 2018 | 10 | 11 |
| 2019 | 7 | 14 |
| 2020 | 12 | 17 |
| 2021 | 7 | 4 |
| 2022 | 9 | 7 |
| 2023 | 4 | 8 |
| 2024 | 5 | 6 |
| 2025 | 5 | 8 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Biogas processing systems and methods24 Mar 2026US 12,582,936 B2Ivys Adsorption Inc.
- Porous metal organic framework-polymer composites for use in detoxifying chemical warfare agents3 Mar 2026US 12,564,830 B2Research Triangle Institute
- Method for producing purified gas, method for producing valuable material, gas purification device, and device for producing valuable material16 Sep 2025US 12,415,157 B2Sekisui Chemical Co., Ltd.
- Method for capturing silicon at low hourly space velocity12 Aug 2025US 12,384,974 B2Ifp Energies Nouvelles
- Siloxane removal systems and methods27 May 2025US 12,311,314 B2Granitefuel Engineering Inc.
- Methane generation system and methane generation method23 Jul 2026US 2026/0209140 A1Metawater Co., Ltd.
- Exhaust gas pretreatment equipment for semiconductor manufacturing facilities16 Jul 2026US 2026/0199826 A1Lot Ces Co., Ltd.
- Hydroxyl-based system for filtering and disinfecting air and liquids and a method of use4 Jun 2026US 2026/0151530 A1
- Electro-ionic mask control devices, systems, and methods for improved protection from airborne bio-pathogens15 Jan 2026US 2026/0014398 A1
- Siloxane treatment systems including thermal hydrolyzer, catalytic reactor and membrane separator, and related methods11 Dec 2025US 2025/0375735 A1Granitefuel Engineering Inc.
Most cited
By later US patents
- Valve block and container for semiconductor source reagent dispensing and/or purification75US 4,723,967 AAdvanced Technology Materials, Inc. · 1988
- Adsorbent assembly for removing gaseous contaminants61US 5,593,482 AW. L. Gore & Associates, Inc. · 1997
- Composition, apparatus, and process, for sorption of gaseous compounds of group II-VII elements42US 5,037,624 AAdvanced Technology Materials, Inc. · 1991
- Method and system for providing upgraded biogas16US 9,969,949 B1Iogen Corporation · 2018
- Hall effect enhanced capacitively coupled plasma source, an abatement system, and vacuum processing system14US 9,240,308 B2APPLIED Materials.Inc. · 2016