B29C 48/37
Gear pumps
B29C48/37 (Gear pumps) appears on 287 US grants and 304 published applications in this corpus.
Search patents in B29C- Granted patents
- 287
- Published applications
- 304
- Assignees
- 184
- Inventors
- 757
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 2 |
| 2002 | 6 | 9 |
| 2003 | 10 | 12 |
| 2004 | 6 | 9 |
| 2005 | 4 | 16 |
| 2006 | 3 | 12 |
| 2007 | 9 | 7 |
| 2008 | 8 | 12 |
| 2009 | 4 | 14 |
| 2010 | 2 | 20 |
| 2011 | 12 | 16 |
| 2012 | 8 | 16 |
| 2013 | 8 | 19 |
| 2014 | 10 | 14 |
| 2015 | 7 | 21 |
| 2016 | 15 | 10 |
| 2017 | 9 | 14 |
| 2018 | 14 | 11 |
| 2019 | 7 | 12 |
| 2020 | 9 | 18 |
| 2021 | 8 | 5 |
| 2022 | 5 | 11 |
| 2023 | 7 | 12 |
| 2024 | 7 | 5 |
| 2025 | 9 | 3 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for extruding a semi-finished product made of elastomeric material8 Sep 2026US 12,728,578 B2Pirelli Tyre S. P. A.
- Granulation method and device for crosslinked polyethylene cable insulating material having voltage grade of 500 kV or more23 Jun 2026US 12,661,840 B2Electric Power Research Institute. China Southern Power Grid
- Polyphenylene ether melt extrusion formed body and method for producing polyphenylene ether melt extrusion formed body31 Mar 2026US 12,590,182 B2TOYOBO MC Corporation
- Method and apparatus for forming tire components using a coextruded strip24 Mar 2026US 12,583,166 B2The Goodyear Tire & Rubber Company
- Polymer injection system comprising multiple pumps and methods of using same23 Dec 2025US 12,502,809 B2Shaw Industries Group, Inc.
- Process for mixing a fluid meltflow stream17 Sep 2026US 2026/0273829 A1Dow Global Technologies LLC
- Process for producing a crosslinked article17 Sep 2026US 2026/0273830 A1Dow Global Technologies LLC
- Polymer injection system comprising multiple pumps and methods of using same2 Apr 2026US 2026/0091536 A1Shaw Industries Group, Inc.
- Granulation method and device for crosslinked polyethylene cable insulating material having voltage grade of 500 kv or more1 Jan 2026US 2026/0001264 A1Electric Power Research Institute. China Southern Power Grid
- Hand-held three-dimensional drawing device31 Jul 2025US 2025/0242531 A1WobbleWorks, Inc.
Most cited
By later US patents
- Extruder viscosity control system and method88US 4,721,589 AHarrel, Inc. · 1988
- Articles that include a polymer foam and method for preparing same84US 6,103,152 A3M Innovative Properties Company · 2000
- Oriented nanofibers embedded in a polymer matrix75US 7,897,248 B2William Marsh Rice University · 2011
- Metering meltblowing system72US 5,236,641 AExxon Chemical Patents Inc. · 1993
- Viscosity pump for extrusion-based deposition systems65US 7,891,964 B2Stratasys, Inc. · 2011