F16C 33/107
Grooves for generating pressure
Official title: {Grooves for generating pressure}
F16C33/107 (Grooves for generating pressure) appears on 1,103 US grants and 987 published applications in this corpus.
Search patents in F16C- Granted patents
- 1,103
- Published applications
- 987
- Assignees
- 249
- Inventors
- 1,424
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 11 | 0 |
| 1993 | 6 | 0 |
| 1994 | 15 | 0 |
| 1995 | 14 | 0 |
| 1996 | 19 | 0 |
| 1997 | 24 | 0 |
| 1998 | 37 | 0 |
| 1999 | 46 | 0 |
| 2000 | 38 | 0 |
| 2001 | 39 | 16 |
| 2002 | 45 | 44 |
| 2003 | 36 | 65 |
| 2004 | 44 | 83 |
| 2005 | 53 | 65 |
| 2006 | 50 | 94 |
| 2007 | 46 | 86 |
| 2008 | 41 | 65 |
| 2009 | 47 | 59 |
| 2010 | 40 | 42 |
| 2011 | 28 | 29 |
| 2012 | 41 | 25 |
| 2013 | 40 | 44 |
| 2014 | 41 | 30 |
| 2015 | 23 | 26 |
| 2016 | 23 | 20 |
| 2017 | 20 | 18 |
| 2018 | 22 | 31 |
| 2019 | 29 | 24 |
| 2020 | 20 | 13 |
| 2021 | 20 | 13 |
| 2022 | 12 | 34 |
| 2023 | 17 | 20 |
| 2024 | 18 | 14 |
| 2025 | 20 | 17 |
| 2026 | 12 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sliding component1 Sep 2026US 12,723,656 B2Eagle Industry Co., Ltd.
- Sliding component25 Aug 2026US 12,716,502 B2Eagle Industry Co., Ltd.
- Sliding components11 Aug 2026US 12,704,151 B2Eagle Industry Co., Ltd.
- Sliding bearing unit and rotating anode X-ray tube7 Jul 2026US 12,676,277 B2Canon Electron Tubes & Devices Co., Ltd.
- Sliding component31 Mar 2026US 12,590,604 B2Eagle Industry Co., Ltd.
- Sliding component27 Aug 2026US 2026/0251178 A1Eagle Industry Co., Ltd.
- Sliding components30 Jul 2026US 2026/0218746 A1Eagle Industry Co., Ltd.
- Sliding component23 Jul 2026US 2026/0210399 A1Eagle Industry Co., Ltd.
- Sliding components16 Jul 2026US 2026/0201951 A1Eagle Industry Co., Ltd.
- Sliding components16 Jul 2026US 2026/0201952 A1Eagle Industry Co., Ltd.
Most cited
By later US patents
- Face seal with angled grooves and shallow annular groove84US 5,556,111 ADurametallic Corporation · 1996
- Spindle motor having air dynamic pressure bearing and rotating device having the spindle motor as driving source81US 6,127,756 ASeiko Instruments Inc. · 2000
- Face seal with double spiral grooves74US 5,201,531 AJohn Crane Inc. · 1993
- Fluid bearing with asymmetrical groove pattern70US 5,427,456 ASynektron Corporation · 1995
- Gas seal70US 5,447,316 AEagle Industry Co., Ltd. · 1995