F04C 13/002
For homogeneous viscous liquids
Official title: {for homogeneous viscous liquids}
F04C13/002 (For homogeneous viscous liquids) appears on 154 US grants and 128 published applications in this corpus.
Search patents in F04C- Granted patents
- 154
- Published applications
- 128
- Assignees
- 127
- Inventors
- 311
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 4 |
| 2003 | 3 | 4 |
| 2004 | 5 | 3 |
| 2005 | 0 | 5 |
| 2006 | 2 | 5 |
| 2007 | 3 | 3 |
| 2008 | 2 | 1 |
| 2009 | 3 | 8 |
| 2010 | 1 | 9 |
| 2011 | 6 | 7 |
| 2012 | 2 | 6 |
| 2013 | 8 | 0 |
| 2014 | 2 | 1 |
| 2015 | 2 | 15 |
| 2016 | 5 | 6 |
| 2017 | 4 | 3 |
| 2018 | 5 | 5 |
| 2019 | 3 | 9 |
| 2020 | 6 | 2 |
| 2021 | 6 | 6 |
| 2022 | 4 | 8 |
| 2023 | 4 | 7 |
| 2024 | 8 | 8 |
| 2025 | 9 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pump for additive manufacturing16 Jun 2026US 12,654,396 B2Sciperio, Inc
- Magnetic drive apparatus for translating rotational motion to nutational motion20 Jan 2026US 12,531,464 B2Magvad LLC
- Metering distribution assembly and coating system comprising the same21 Oct 2025US 12,448,964 B2Nordson Corporation
- Electric oil pump2 Sep 2025US 12,407,227 B2Zhejiang Sanhua Automotive Components Co., Ltd.
- Gear pump with intermeshing gearwheels enclosed by housing with bearing journals arranged on shaft axes12 Aug 2025US 12,385,483 B2Maag Pump Systems AG
- Pump device1 Oct 2026US 2026/0298230 A1Mikuni Corporation
- Grease pump unit comprising two serially connected pumps30 Jan 2025US 2025/0035112 A1Danhydra A/S
- Liquid hydrocarbon fluid transfer system23 Jan 2025US 2025/0027495 A1
- Magnetic drive apparatus for translating rotational motion to nutational motion12 Dec 2024US 2024/0413728 A1Magvad LLC
- Gear pump and its use24 Oct 2024US 2024/0352934 A1Maag Pump Systems AG
Most cited
By later US patents
- Method and apparatus for accurately dispensing liquids and solids72US 5,857,589 AFluid Research Corporation · 1999
- Method and apparatus for accurately dispensing liquids and solids56US 6,126,039 AFluid Research Corporation · 2000
- Method and apparatus for accurately dispensing liquids and solids55US 6,286,566 B1Fluid Research Corporation · 2001
- Apparatus for melting and dispensing thermoplastic material50US 3,964,645 ANordson Corporation · 1976
- Apparatus for melting and dispensing thermoplastic material46US 3,981,416 ANordson Corporation · 1976