F16L
Pipes
Official title: Pipes; joints or fittings for pipes; supports for pipes, cables or protective tubing; means for thermal insulation in general
F16L (Pipes) appears on 49,109 US grants and 40,031 published applications in this corpus.
Search patents in F16L- Granted patents
- 49,109
- Published applications
- 40,031
- Assignees
- 16,078
- Inventors
- 72,469
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 665 | 0 |
| 1977 | 606 | 0 |
| 1978 | 686 | 0 |
| 1979 | 443 | 0 |
| 1980 | 604 | 0 |
| 1981 | 646 | 0 |
| 1982 | 495 | 0 |
| 1983 | 491 | 0 |
| 1984 | 644 | 0 |
| 1985 | 606 | 0 |
| 1986 | 673 | 0 |
| 1987 | 843 | 0 |
| 1988 | 648 | 0 |
| 1989 | 824 | 0 |
| 1990 | 724 | 0 |
| 1991 | 779 | 0 |
| 1992 | 796 | 0 |
| 1993 | 717 | 0 |
| 1994 | 878 | 0 |
| 1995 | 797 | 0 |
| 1996 | 771 | 0 |
| 1997 | 711 | 0 |
| 1998 | 925 | 0 |
| 1999 | 979 | 0 |
| 2000 | 987 | 0 |
| 2001 | 902 | 244 |
| 2002 | 939 | 763 |
| 2003 | 853 | 953 |
| 2004 | 729 | 1195 |
| 2005 | 695 | 1288 |
| 2006 | 763 | 1253 |
| 2007 | 571 | 1149 |
| 2008 | 636 | 1336 |
| 2009 | 689 | 1231 |
| 2010 | 880 | 1484 |
| 2011 | 802 | 1380 |
| 2012 | 866 | 1412 |
| 2013 | 970 | 1739 |
| 2014 | 1150 | 1911 |
| 2015 | 1425 | 1975 |
| 2016 | 1459 | 2016 |
| 2017 | 1739 | 1993 |
| 2018 | 1658 | 2177 |
| 2019 | 1947 | 2146 |
| 2020 | 1985 | 2146 |
| 2021 | 1779 | 1914 |
| 2022 | 1686 | 1960 |
| 2023 | 1711 | 1833 |
| 2024 | 1754 | 1802 |
| 2025 | 1552 | 1596 |
| 2026 | 1031 | 1135 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- F16L 55/00Devices or appurtenances for use in, or in connection with, pipes or8,724
- F16L 37/00Couplings of the quick-acting type7,326
- F16L 3/00Supports for pipes, cables or protective tubing5,628
- F16L 11/00Hoses, i.e. flexible pipes3,672
- F16L 59/00Thermal insulation in general3,203
- F16L 9/00Rigid pipes2,992
- F16L 1/00Laying or reclaiming pipes2,885
- F16L 33/00Arrangements for connecting hoses to rigid members2,807
All 33 main groupsShow fewer
- F16L 41/00Branching pipes2,665
- F16L 27/00Adjustable joints2,602
- F16L 23/00Flanged joints2,530
- F16L 21/00Joints with sleeve or socket2,301
- F16L 25/00Construction or details of pipe joints not provided for in, or of2,114
- F16L 19/00Joints in which sealing surfaces are pressed together by means of a1,898
- F16L 2201/00Special arrangements for pipe couplingsIndexing code1,851
- F16L 47/00Connecting arrangements or other fittings specially adapted to be made of plastics1,812
- F16L 15/00Screw-threaded joints1,697
- F16L 5/00Devices for use where pipes, cables or protective tubing pass through walls1,695
- F16L 13/00Non-disconnectable pipe joints1,636
- F16L 58/00Protection of pipes or pipe fittings against corrosion or incrustation1,564
- F16L 57/00Protection of pipes or objects of similar shape against external or internal1,356
- F16L 39/00Joints or fittings for double-walled or multi-channel pipes or pipe assemblies1,291
- F16L 17/00Joints with packing adapted to sealing by fluid pressure943
- F16L 2101/00Uses or applications of pigs or molesIndexing code843
- F16L 53/00Heating of pipes or pipe systems767
- F16L 29/00Joints with fluid cut-off means670
- F16L 43/00Bends434
- F16L 51/00Expansion-compensation arrangements for pipe-lines424
- F16L 35/00Special arrangements used in connection with end fittings of hoses417
- F16L 7/00Supporting pipes or cables inside other pipes or sleeves326
- F16L 31/00Arrangements for connecting hoses to one another or to flexible sleeves145
- F16L 49/00Connecting arrangements91
- F16L 45/00Pipe units with cleaning aperture and closure therefor88
Recent patents
- Aerosol generation device comprising a thermal insulation wall and associated assembly method6 Oct 2026US 12,751,487 B2JT International SA
- Central vacuum system and inlet valves therefor6 Oct 2026US 12,751,587 B2H-P Products, Inc.
- System and method for determining position of a pipelayer boom6 Oct 2026US 12,753,051 B2Caterpillar Inc.
- Garden hose extension kit6 Oct 2026US 12,753,586 B1
- Methods and systems for earth drilling6 Oct 2026US 12,753,664 B2Mhwirth AS
- Removably mounted plow for elongated tubular materials8 Oct 2026US 2026/0305511 A1Roberts Welding & Fabricating Ltd.
- Threaded Joint8 Oct 2026US 2026/0308988 A1Diversity Technologies Corporation
- Weld cap and plug welds for fluid delivery systems8 Oct 2026US 2026/0309168 A1Compart Systems Pte. Ltd.
- Maintenance hole connection seal8 Oct 2026US 2026/0309231 A1S & B Technical Products, Inc.
- Vortex-induced vibration strake arrangements8 Oct 2026US 2026/0309253 A1Advanced Innergy Ltd.
Most cited
By later US patents
- Bayonet connector for surgical handpiece1,578US 5,466,020 AValleylab, Inc. · 1995
- Method of installing an insulating sleeve on a staple1,528US 3,940,844 APCI Group, Inc. · 1976
- Flexible plastics vacuum cleaner core1,473US 5,778,939 ADual Voltage Co. Ltd. · 1998
- Flexible drill pipe1,412US 4,600,037 ATexas Eastern Drilling Systems, Inc. · 1986
- Articulated ball connector for use with pipeline1,368US 4,180,285 A1979