B01D 2258/05
Biogas
B01D2258/05 (Biogas) appears on 425 US grants and 661 published applications in this corpus.
Search patents in B01D- Granted patents
- 425
- Published applications
- 661
- Assignees
- 358
- Inventors
- 1,195
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 4 |
| 2005 | 1 | 1 |
| 2006 | 1 | 3 |
| 2007 | 2 | 3 |
| 2008 | 3 | 12 |
| 2009 | 1 | 7 |
| 2010 | 10 | 24 |
| 2011 | 7 | 30 |
| 2012 | 14 | 25 |
| 2013 | 28 | 40 |
| 2014 | 22 | 35 |
| 2015 | 27 | 24 |
| 2016 | 15 | 26 |
| 2017 | 11 | 27 |
| 2018 | 24 | 40 |
| 2019 | 32 | 39 |
| 2020 | 30 | 44 |
| 2021 | 27 | 53 |
| 2022 | 33 | 32 |
| 2023 | 32 | 45 |
| 2024 | 28 | 55 |
| 2025 | 40 | 53 |
| 2026 | 22 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas separation system and method for producing methane-enriched gas15 Sep 2026US 12,734,474 B2Ube Corporation
- Membrane permeate recycle with pressurized anaerobic digesters15 Sep 2026US 12,734,475 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- System and method for separating a gas mixture25 Aug 2026US 12,714,968 B2Haffmans B.V.
- Method and arrangement for capturing CO221 Jul 2026US 12,685,960 B2Greencap Solutions AS
- Systems and methods of sequestering carbon dioxide in concrete14 Jul 2026US 12,679,779 B2Innovative Carbon Technologies Inc.
- Method for treating a fluid, fluid discharge device for a fluid and associated system8 Oct 2026US 2026/0306992 A1
- Process for removing sulfur containing compounds from gas containing at least one sulfur containing compound10 Sep 2026US 2026/0264009 A1Sulzer Management AG
- Odor reducing systems for composter assembly10 Sep 2026US 2026/0264012 A1VCycene Inc.
- Methanol Production System that Reuses Unreacted Gas for Efficient Methanol Production10 Sep 2026US 2026/0264037 A1Doosan Enerbility Co., Ltd.
- Sulfur detector and fuel processing system including the same10 Sep 2026US 2026/0266786 A1Bloom Energy Corporation
Most cited
By later US patents
- Regeneration of adsorbents138US 4,784,672 AAir Products and Chemicals, Inc. · 1988
- Recovery of methane from land fill gas136US 4,770,676 AAir Products and Chemicals, Inc. · 1988
- Process for the separation of landfill gas115US 4,681,612 AKoch Process Systems, Inc. · 1987
- Process for solids waste landfill gas treatment and separation of methane and carbon dioxide95US 5,642,630 A1997
- Landfill gas recovery94US 5,842,357 AAcrion Technologies, Inc. · 1998