E05Y 2201/254
Fluid or viscous friction
E05Y2201/254 (Fluid or viscous friction) appears on 526 US grants and 489 published applications in this corpus.
Search patents in E05Y- Granted patents
- 526
- Published applications
- 489
- Assignees
- 248
- Inventors
- 809
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 10 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 13 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 3 |
| 2002 | 13 | 14 |
| 2003 | 14 | 22 |
| 2004 | 13 | 23 |
| 2005 | 12 | 24 |
| 2006 | 18 | 30 |
| 2007 | 10 | 18 |
| 2008 | 18 | 30 |
| 2009 | 10 | 32 |
| 2010 | 24 | 34 |
| 2011 | 17 | 35 |
| 2012 | 27 | 15 |
| 2013 | 25 | 15 |
| 2014 | 22 | 16 |
| 2015 | 15 | 7 |
| 2016 | 9 | 9 |
| 2017 | 11 | 8 |
| 2018 | 10 | 18 |
| 2019 | 13 | 17 |
| 2020 | 10 | 19 |
| 2021 | 12 | 15 |
| 2022 | 11 | 15 |
| 2023 | 11 | 28 |
| 2024 | 19 | 18 |
| 2025 | 32 | 20 |
| 2026 | 15 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Modular rotating shear thickening fluid based object control mechanism18 Aug 2026US 12,710,086 B2Moshun, LLC
- System for the controlled rotary movement of a door, a leaf or the like21 Jul 2026US 12,687,060 B2
- Hinge in particular for household appliance7 Jul 2026US 12,674,344 B2
- Cam hydraulic door closer for narrow frame door23 Jun 2026US 12,662,863 B2Sun-Q Door Controls Limited
- Door opening speed controller and automatic opening structure for an appliance23 Jun 2026US 12,666,505 B2LG Electronics Inc.
- Door closer13 Aug 2026US 2026/0234977 A1Dormakaba Deutschland GmbH
- Closure system2 Jul 2026US 2026/0185403 A1Locinox
- Appliance and door opening mechanism therefor25 Jun 2026US 2026/0176902 A1Haier US Appliance Solutions, Inc.
- Self-closing safety gate28 May 2026US 2026/0146504 A1Ps Industries Incorporated
- One-pin hinge for furniture doors fitted with return closing means27 Nov 2025US 2025/0361754 A1Danco, Inc.
Most cited
By later US patents
- Door opening device for food storage apparatus such as refrigerator92US 6,338,536 B12002
- Door hinge with movable and fixed cams81US 5,109,571 ASugatsune Industrial Co., Ltd. · 1992
- Vending machine with controlled return access door74US 4,844,567 A1989
- Door closer69US 4,660,250 ADorma-Baubeschlag GmbH & Co. KG · 1987
- Door control device with closure regulator65US 4,069,545 AGeneral Electric Company · 1978