F04C 13/004
With means for fluidising or diluting the material being pumped
Official title: {with means for fluidising or diluting the material being pumped}
F04C13/004 (With means for fluidising or diluting the material being pumped) appears on 19 US grants and 23 published applications in this corpus.
Search patents in F04C- Granted patents
- 19
- Published applications
- 23
- Assignees
- 15
- Inventors
- 42
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 3 |
| 2010 | 0 | 2 |
| 2011 | 2 | 2 |
| 2012 | 2 | 5 |
| 2013 | 3 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 3 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Screw pump with a tapered suction-side section and a pressure-side section with a decreasing clearance5 Aug 2025US 12,378,961 B2Leybold Aktiengesellschaft
- Rotary positive displacement pump with a guard18 Feb 2025US 12,228,133 B2Alfa Laval Corporate AB
- Rotary positive displacement pump12 Nov 2024US 12,140,142 B2Alfa Laval Corporate AB
- Progressing cavity device with cutter disks23 Aug 2022US 11,421,693 B2Roper Pump Company
- Multi-phase pump with cooled liquid reservoir30 Mar 2021US 10,962,002 B2Flowserve Management Company
- Screw pump, screw rotor, method of manufacturing a screw rotor, and use of a screw pump or a screw rotor3 Oct 2024US 2024/0328419 A1Leybold Aktiengesellschaft
- A rotary positive displacement pump with a guard15 Feb 2024US 2024/0052831 A1Alfa Laval Corporate AB
- A rotary positive displacement pump15 Feb 2024US 2024/0052834 A1Alfa Laval Corporate AB
- Progressing cavity device with cutter disks10 Sep 2020US 2020/0284262 A1Roper Pump Company
- Multi-phase pump with cooled liquid reservoir8 Nov 2018US 2018/0320685 A1Flowserve Management Company
Most cited
By later US patents
- Apparatus and system for producing foamed cementitious products31US 5,660,465 A1997
- Enclosed circulation tool for a well6US 7,975,765 B2Logan Completion Systems Inc. · 2011
- Method for extracting nylon from waste materials5US 7,550,516 B2Interface, Inc. · 2009
- Agitator tool for progressive cavity pump3US 8,079,753 B21350363 Alberta Ltd. · 2011
- Pump arrangement having temperature control components2US 10,018,198 B2Magna Powertrain Bad Homburg GmbH · 2018