F04C 18/1075
The inner and outer member having a different number of threads and
Official title: {the inner and outer member having a different number of threads and one of the two being made of elastic material, e.g. Moineau type}
F04C18/1075 (The inner and outer member having a different number of threads and) appears on 14 US grants and 12 published applications in this corpus.
Search patents in F04C- Granted patents
- 14
- Published applications
- 12
- Assignees
- 15
- Inventors
- 38
- Latest grant
- 26 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 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 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 3 |
| 2017 | 2 | 1 |
| 2018 | 3 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Mud motor or progressive cavity pump with varying pitch and taper26 Nov 2024US 12,152,587 B2Schlumberger Technology Corporation
- Elastomeric stator with modified fiber orientation7 Nov 2023US 11,806,902 B2Abaco Drilling Technologies LLC
- Pump housing with dual-purpose inlet fitting13 Sep 2022US 11,441,560 B2Seepex GmbH
- Stator for an eccentric screw pump30 Oct 2018US 10,113,426 B2
- System and method for operating a pump19 Jun 2018US 10,001,121 B2Franklin Electric Co., Inc.
- Mud motor or progressive cavity pump with varying pitch and taper17 Nov 2022US 2022/0364559 A1Schlumberger Technology Corporation
- Pump housing13 May 2021US 2021/0140428 A1Seepex GmbH
- Elastomeric stator with modified fiber orientation30 Jul 2020US 2020/0238580 A1Abaco Drilling Technologies LLC
- Hydraulic tools including removable coatings, drilling systems, and methods of making and using hydraulic tools15 Jun 2017US 2017/0167199 A1Baker Hughes Incorporated
- Stator for a feed pump24 Mar 2016US 2016/0084085 A1Sueddeutsche Gelenkscheibenfabrik GmbH & Co. KG
Most cited
By later US patents
- Compressor13US 4,802,827 AKabushiki Kaisha Toshiba · 1989
- Progressing cavity pump adapted for pumping of compressible fluids7US 8,556,603 B2Agr Subsea AS · 2013
- Progressive cavity compressor having check valves on the discharge endplate4US 8,083,508 B2Blue Helix · 2011
- System and method for operating a pump3US 10,001,121 B2Franklin Electric Co., Inc. · 2018
- Method and device for injection of liquid3US 3,941,520 AAtlas Copco Aktiebolag · 1976