G01F 11/04
Of the free-piston type
Official title: of the free-piston type
G01F11/04 (Of the free-piston type) appears on 154 US grants and 105 published applications in this corpus.
Search patents in G01F- Granted patents
- 154
- Published applications
- 105
- Assignees
- 98
- Inventors
- 247
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 3 |
| 2003 | 3 | 1 |
| 2004 | 2 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 5 |
| 2007 | 0 | 1 |
| 2008 | 5 | 4 |
| 2009 | 0 | 3 |
| 2010 | 0 | 6 |
| 2011 | 4 | 9 |
| 2012 | 7 | 8 |
| 2013 | 5 | 4 |
| 2014 | 4 | 6 |
| 2015 | 4 | 2 |
| 2016 | 7 | 9 |
| 2017 | 4 | 10 |
| 2018 | 8 | 7 |
| 2019 | 10 | 7 |
| 2020 | 3 | 5 |
| 2021 | 6 | 2 |
| 2022 | 4 | 1 |
| 2023 | 0 | 3 |
| 2024 | 0 | 1 |
| 2025 | 3 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid product dispenser23 Jun 2026US 12,661,673 B2Aptar France SAS
- Attachment for a beverage container23 Jun 2026US 12,662,295 B2Societe des Produits Nestle S. A.
- Particulate matter filling method and particulate matter filling device16 Dec 2025US 12,497,201 B2Mitsubishi Gas Chemical Company, Inc.
- Attachment for a beverage container24 Jun 2025US 12,338,044 B2Societe des Produits Nestle S. A.
- Cannabis concentrate dispensing system and method8 Apr 2025US 12,269,730 B2Detroit Dispensing Solutions LLC
- Filling device for filling battery cells with an electrolyte liquid15 Jan 2026US 2026/0018767 A1Industrie-Partner GmbH Radebeul-Coswig
- Syringe Assembly & Method for Accurate Dosing24 Jul 2025US 2025/0235384 A1Control Ltd.
- Cannabis concentrate dispensing system and method26 Jun 2025US 2025/0206593 A1Detroit Dispensing Solutions LLC
- Fluid product dispenser15 May 2025US 2025/0153207 A1Aptar France SAS
- Particulate matter filling method and particulate matter filling device10 Apr 2025US 2025/0115382 A1Mitsubishi Gas Chemical Company, Inc.
Most cited
By later US patents
- Infusion pumps and methods and delivery devices and methods with same487US 8,202,250 B2Medtronic MiniMed, Inc. · 2012
- Passive shuttle metering device for implantable drug delivery system220US 5,207,666 AInfusaid, Inc. · 1993
- Post-mix beverage system for use in extra-terrestrial space86US 5,947,334 AThe Coca-Cola Company · 1999
- Infusion pump and method for use74US 7,008,403 B1Cognitive Ventures Corporation · 2006
- Method and arrangement for disinfecting a dialysis fluid circuit68US 5,256,371 AMedical Support GmbH · 1993