F16B 33/06
Surface treatment of parts furnished with screw-thread
Official title: Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure {or fretting (corrosion preventing means F16B33/008; settable coatings for locking threaded members F16B39/225; deformable coatings for locking threaded members F16B39/34)}
F16B33/06 (Surface treatment of parts furnished with screw-thread) appears on 252 US grants and 206 published applications in this corpus.
Search patents in F16B- Granted patents
- 252
- Published applications
- 206
- Assignees
- 160
- Inventors
- 549
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 10 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 6 | 2 |
| 2003 | 2 | 5 |
| 2004 | 0 | 6 |
| 2005 | 2 | 4 |
| 2006 | 3 | 8 |
| 2007 | 4 | 3 |
| 2008 | 0 | 3 |
| 2009 | 3 | 12 |
| 2010 | 1 | 10 |
| 2011 | 4 | 6 |
| 2012 | 8 | 7 |
| 2013 | 7 | 9 |
| 2014 | 8 | 8 |
| 2015 | 7 | 19 |
| 2016 | 4 | 14 |
| 2017 | 18 | 13 |
| 2018 | 8 | 9 |
| 2019 | 10 | 13 |
| 2020 | 9 | 16 |
| 2021 | 6 | 10 |
| 2022 | 11 | 8 |
| 2023 | 9 | 3 |
| 2024 | 6 | 9 |
| 2025 | 3 | 3 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Method for producing a screw, and screw2 Jun 2026US 12,644,162 B2EJOT GmbH & Co. KG
- Union screw for a pipeline provided with at least one flange, in particular a brake pipe21 Apr 2026US 12,606,144 B2Cooper-Standard Automotive (Deutschland) GmbH
- Agent for forming solid lubricating coating film, oil country tubular goods, and threaded joint for oil country tubular goods17 Feb 2026US 12,553,005 B2Jfe Steel Corporation
- Friction joining element30 Sep 2025US 12,429,080 B2Jfe Steel Corporation
- Coated fastener and manufacturing method for same6 Aug 2026US 2026/0226933 A1Posco
- Fastener, fastener system, and method of forming the fastener23 Jul 2026US 2026/0210396 A1GM Global Technology Operations LLC
- Tools and fasteners including surface coatings7 May 2026US 2026/0125816 A1Maxterial, Inc.
- Aqueous Curable Multi-Component System30 Apr 2026US 2026/0117013 A1Omnitechnik Mikroverkapselungs GmbH
- Screw connection arrangement7 Aug 2025US 2025/0251001 A1R&D Engineering A/S
Most cited
By later US patents
- Polymerizable fluid148US 4,632,944 ALoctite Corporation · 1986
- Self-bonding threaded fasteners and method of curing same128US 4,657,460 AChrysler Motors Corporation · 1987
- Thread securing device using adhesive77US 4,904,136 AMitsubishi Denki Kabushiki Kaisha · 1990
- Fastener assembly with sealing grommet72US 4,975,008 AIllinois Tool Works Inc. · 1990
- Self-drilling/self-tapping fastener66US 5,755,542 AElco Textron Inc. · 1998