F05C 2225/00
Synthetic polymers
Official title: Synthetic polymers, e.g. plastics; Rubber
F05C2225/00 (Synthetic polymers) appears on 1,255 US grants and 691 published applications in this corpus.
Search patents in F05C- Granted patents
- 1,255
- Published applications
- 691
- Assignees
- 618
- Inventors
- 2,588
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 16 | 0 |
| 1978 | 13 | 0 |
| 1979 | 7 | 0 |
| 1980 | 13 | 0 |
| 1981 | 7 | 0 |
| 1982 | 15 | 0 |
| 1983 | 8 | 0 |
| 1984 | 15 | 0 |
| 1985 | 19 | 0 |
| 1986 | 11 | 0 |
| 1987 | 19 | 0 |
| 1988 | 22 | 0 |
| 1989 | 28 | 0 |
| 1990 | 17 | 0 |
| 1991 | 30 | 0 |
| 1992 | 38 | 0 |
| 1993 | 36 | 0 |
| 1994 | 40 | 0 |
| 1995 | 37 | 0 |
| 1996 | 44 | 0 |
| 1997 | 59 | 0 |
| 1998 | 64 | 0 |
| 1999 | 52 | 0 |
| 2000 | 56 | 0 |
| 2001 | 54 | 16 |
| 2002 | 44 | 46 |
| 2003 | 48 | 64 |
| 2004 | 39 | 40 |
| 2005 | 23 | 23 |
| 2006 | 22 | 32 |
| 2007 | 23 | 27 |
| 2008 | 16 | 40 |
| 2009 | 12 | 33 |
| 2010 | 23 | 29 |
| 2011 | 16 | 33 |
| 2012 | 18 | 25 |
| 2013 | 25 | 22 |
| 2014 | 23 | 31 |
| 2015 | 20 | 36 |
| 2016 | 16 | 27 |
| 2017 | 22 | 20 |
| 2018 | 18 | 22 |
| 2019 | 25 | 24 |
| 2020 | 17 | 25 |
| 2021 | 14 | 18 |
| 2022 | 19 | 12 |
| 2023 | 15 | 10 |
| 2024 | 15 | 7 |
| 2025 | 8 | 15 |
| 2026 | 4 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rubber compound reinforced with alternative fibers23 Jun 2026US 12,661,856 B2Abaco Drilling Technologies LLC
- Electric liquid pump24 Mar 2026US 12,584,484 B2Toyoda Gosei Co., Ltd.
- Screw pump and its components24 Feb 2026US 12,560,167 B2Illinois Tool Works Inc.
- Eccentric screw pump with weakening recesses in the power train27 Jan 2026US 12,535,070 B2NETZSCH Pumpen & Systeme GmbH
- Floating-type oil-free vacuum scroll compressor23 Dec 2025US 12,504,013 B2Shenyang Canta Medical Tech. Co., Ltd.
- Diaphragm pump8 Oct 2026US 2026/0309142 A1Ckd Corporation
- Double diaphragm pump with improved plain bearing27 Aug 2026US 2026/0251134 A1Lutz Pumpen GmbH
- Pump stator tie-layer with surface roughness20 Aug 2026US 2026/0243253 A1Schlumberger Technology Corporation
- Stator with non-uniform thickness for one-to-two lobe ratio pumps6 Aug 2026US 2026/0226894 A1Schlumberger Technology Corporation
- Rubber compound reinforced with low-modulus fibers16 Jul 2026US 2026/0200188 A1Abaco Drilling Technologies LLC
Most cited
By later US patents
- Electroactive polymer devices1,577US 6,545,384 B1SRI International · 2003
- Electroactive polymer electrodes1,515US 6,583,533 B2SRI International · 2003
- Electrostatically actuated mesopump having a plurality of elementary cells377US 5,836,750 AHoneywell Inc. · 1998
- Pressure sensitive valves for extracorporeal circuits251US 5,186,431 A1993
- Disposable ambulatory microprocessor controlled volumetric pump249US 5,807,075 ASarcos Corp. · 1998