F01C 1/107
With helical teeth
Official title: with helical teeth
F01C1/107 (With helical teeth) appears on 40 US grants and 41 published applications in this corpus.
Search patents in F01C- Granted patents
- 40
- Published applications
- 41
- Assignees
- 26
- Inventors
- 84
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 4 |
| 2008 | 0 | 4 |
| 2009 | 4 | 5 |
| 2010 | 3 | 3 |
| 2011 | 0 | 4 |
| 2012 | 2 | 1 |
| 2013 | 2 | 1 |
| 2014 | 2 | 3 |
| 2015 | 1 | 3 |
| 2016 | 2 | 1 |
| 2017 | 5 | 5 |
| 2018 | 1 | 0 |
| 2019 | 5 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pumps, compressors, and expanders with a teardrop-shaped rotor8 Jul 2025US 12,352,268 B2Rotoliptic Technologies Incorporated
- Method of lining an inner surface of a tubular and system for doing same14 Dec 2021US 11,198,152 B2Baker Hughes, A Ge Company, LLC
- Bearing/gearing section for a PDM rotor/stator22 Oct 2019US 10,450,800 B2Schlumberger Technology Corporation
- Stator compound having an NBIR terpolymer elastomeric base and stators and downhole motors using the same15 Oct 2019US 10,442,916 B2PV Fluid Products, Inc.
- Method of lining an inner surface of a tubular and system for doing same17 Sep 2019US 10,413,936 B2Baker Hughes, A Ge Company, LLC
- Rotary Machines With Teardrop-Shaped Rotors2 Oct 2025US 2025/0305496 A1Rotoliptic Technologies Incorporated
- Rotary Machines With Teardrop-Shaped Rotors28 Dec 2023US 2023/0417242 A1Rotoliptic Technologies Incorporated
- Method of lining an inner surface of a tubular and system for doing same21 Nov 2019US 2019/0351451 A1Baker Hughes, A Ge Company, LLC
- Stator Compound Having an NBIR Terpolymer Elastomeric Base and Stators and Downhole Motors Using the Same24 Jan 2019US 2019/0023878 A1PV Fluid Products, Inc.
- Well site pump with integrated driver and hydraulic motor and method of using same13 Jul 2017US 2017/0198582 A1National Oilwell Varco, L. P.
Most cited
By later US patents
- Composite stator construction for downhole drilling motors85US 5,171,138 ADrilex Systems, Inc. · 1992
- Steerable motor system with integrated formation evaluation logging capacity32US 5,325,714 ABaker Hughes Incorporated · 1994
- Progressive cavity drive train31US 5,139,400 A1992
- Axial flow apparatus with rotating helical chamber and spindle members27US 4,482,305 AOrszagos Koolaj es Gazipari Troszt · 1984
- Wafer elements for progressing cavity stators22US 3,975,120 ASmith International, Inc. · 1976