F16N 21/02
Lubricating nipples
F16N21/02 (Lubricating nipples) appears on 69 US grants and 57 published applications in this corpus.
Search patents in F16N- Granted patents
- 69
- Published applications
- 57
- Assignees
- 48
- Inventors
- 120
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 3 |
| 2005 | 2 | 3 |
| 2006 | 2 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 1 |
| 2014 | 0 | 4 |
| 2015 | 4 | 2 |
| 2016 | 2 | 1 |
| 2017 | 0 | 8 |
| 2018 | 2 | 1 |
| 2019 | 3 | 5 |
| 2020 | 3 | 7 |
| 2021 | 6 | 2 |
| 2022 | 2 | 4 |
| 2023 | 3 | 3 |
| 2024 | 4 | 3 |
| 2025 | 4 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Connector of grease gun28 Oct 2025US 12,455,042 B2King Cho Machinery Industrial Co., Ltd.
- Wind turbine bearing and method of lubrication26 Aug 2025US 12,398,700 B2Renew Energy Maintenance, LLC
- Linear guide, carriage, end cap and method for lubrication5 Aug 2025US 12,378,995 B2Ewellix AB
- Lubricating tubes, systems, and methods13 May 2025US 12,297,957 B2Lubecon USA, LLC
- Transmission lubricating structure of helicopter9 Jul 2024US 12,031,621 B2Kawasaki Jukogyo Kabushiki Kaisha
- Semi-trailer hub cap cover with zerk fitting10 Sep 2026US 2026/0264447 A1
- Wind turbine bearing and method of lubrication26 Jun 2025US 2025/0207562 A1Renew Energy Maintenance, LLC
- Connector of grease gun24 Oct 2024US 2024/0353058 A1King Cho Machinery Industrial Co., Ltd.
- Cleaning tool for grease fitting1 Feb 2024US 2024/0035616 A1
- Wind turbine bearing and method of lubrication18 Jan 2024US 2024/0018946 A1Renew Energy Maintenance, LLC
Most cited
By later US patents
- Filter element shutoff valve36US 4,222,875 ADeere & Company · 1980
- Free flow fitting29US 4,977,927 A1990
- Methods and systems for performing, monitoring and analyzing multiple machine fluid processes26US 7,793,681 B2Rpm Industries, LLC · 2010
- Methods and systems for performing, monitoring and analyzing multiple machine fluid processes24US 7,150,286 B2Rpm Industries, LLC · 2006
- Lubricant fitting22US 4,067,414 A1978