F02B 2043/106
Hydrogen obtained by electrolysis
Official title: {Hydrogen obtained by electrolysis}
F02B2043/106 (Hydrogen obtained by electrolysis) appears on 164 US grants and 182 published applications in this corpus.
Search patents in F02B- Granted patents
- 164
- Published applications
- 182
- Assignees
- 86
- Inventors
- 284
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 5 |
| 2003 | 0 | 1 |
| 2004 | 4 | 2 |
| 2005 | 1 | 2 |
| 2006 | 3 | 1 |
| 2007 | 2 | 4 |
| 2008 | 0 | 2 |
| 2009 | 0 | 5 |
| 2010 | 1 | 7 |
| 2011 | 0 | 10 |
| 2012 | 4 | 8 |
| 2013 | 4 | 4 |
| 2014 | 3 | 12 |
| 2015 | 2 | 9 |
| 2016 | 2 | 9 |
| 2017 | 4 | 12 |
| 2018 | 4 | 11 |
| 2019 | 8 | 19 |
| 2020 | 16 | 9 |
| 2021 | 10 | 9 |
| 2022 | 6 | 9 |
| 2023 | 9 | 13 |
| 2024 | 9 | 10 |
| 2025 | 3 | 4 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method of adding gaseous oxygen additive derived from an oxygen concentrator to diesel fuel to improve combustion21 Jul 2026US 12,687,143 B2H2Diesel, Inc.
- Mechanical renewable green energy production7 Jul 2026US 12,674,503 B2Phos Global Energy Solutions, Inc.
- Method for reducing emissions from a hydrogen combustion engine2 Jun 2026US 12,644,403 B2Hyundai Motor Company
- Method of operating an internal combustion engine of a truck or omnibus28 Apr 2026US 12,612,878 B2Obrist Technologies GmbH
- Hydrogen storage power plant, and method for operating same14 Apr 2026US 12,601,289 B2Eag Automatisierungsbau GmbH
- Methods to Reduce Combustion Time and Temperature in an Engine13 Aug 2026US 2026/0235084 A1Acamar Investments, Inc.
- Hydrogen internal combustion engine with injection ring25 Jun 2026US 2026/0177023 A1Ferrari S.P. A.
- System and method of adding gaseous oxygen additive derived from an oxygen concentrator to diesel fuel to improve combustion11 Jun 2026US 2026/0160223 A1H2Diesel, Inc.
- Method for reducing emissions from a hydrogen combustion engine16 Apr 2026US 2026/0104003 A1Hyundai Motor Company
- Hydrogen and oxygen injection in an active pre-chamber ignition engine5 Feb 2026US 2026/0036105 A1Purdue Research Foundation
Most cited
By later US patents
- Method and apparatus for improved operation of internal combustion engines115US 5,343,699 A1994
- Fuel regenerated non-polluting internal combustion engine97US 4,099,489 A1978
- Plasmatron-internal combustion engine system77US 5,437,250 AMassachusetts Institute of Technology · 1995
- Special purpose blends of hydrogen and natural gas72US 5,139,002 AHydrogen Consultants, Inc. · 1992
- Plasmatron-internal combustion engine system70US 5,425,332 AMassachusetts Institute of Technology · 1995