F16C
Shafts
Official title: Shafts; flexible shafts; elements or crankshaft mechanisms; rotary bodies other than gearing elements; bearings
F16C (Shafts) appears on 40,508 US grants and 32,556 published applications in this corpus.
Search patents in F16C- Granted patents
- 40,508
- Published applications
- 32,556
- Assignees
- 9,730
- Inventors
- 57,054
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 499 | 0 |
| 1977 | 444 | 0 |
| 1978 | 398 | 0 |
| 1979 | 262 | 0 |
| 1980 | 446 | 0 |
| 1981 | 390 | 0 |
| 1982 | 398 | 0 |
| 1983 | 336 | 0 |
| 1984 | 421 | 0 |
| 1985 | 473 | 0 |
| 1986 | 480 | 0 |
| 1987 | 555 | 0 |
| 1988 | 482 | 0 |
| 1989 | 676 | 0 |
| 1990 | 601 | 0 |
| 1991 | 629 | 0 |
| 1992 | 643 | 0 |
| 1993 | 619 | 0 |
| 1994 | 589 | 0 |
| 1995 | 563 | 0 |
| 1996 | 676 | 0 |
| 1997 | 643 | 0 |
| 1998 | 827 | 0 |
| 1999 | 748 | 0 |
| 2000 | 806 | 0 |
| 2001 | 910 | 271 |
| 2002 | 877 | 969 |
| 2003 | 864 | 1057 |
| 2004 | 861 | 1153 |
| 2005 | 697 | 988 |
| 2006 | 696 | 1009 |
| 2007 | 581 | 1088 |
| 2008 | 530 | 1138 |
| 2009 | 584 | 1201 |
| 2010 | 708 | 1203 |
| 2011 | 732 | 1130 |
| 2012 | 886 | 1121 |
| 2013 | 996 | 1359 |
| 2014 | 1233 | 1502 |
| 2015 | 1242 | 1601 |
| 2016 | 1246 | 1738 |
| 2017 | 1432 | 1631 |
| 2018 | 1449 | 1736 |
| 2019 | 1720 | 1726 |
| 2020 | 1585 | 1731 |
| 2021 | 1424 | 1526 |
| 2022 | 1349 | 1333 |
| 2023 | 1222 | 1252 |
| 2024 | 1217 | 1261 |
| 2025 | 1118 | 1075 |
| 2026 | 745 | 757 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- F16C 33/00Parts of bearings17,121
- F16C 19/00Bearings with rolling contact, for exclusively rotary movement11,078
- F16C 17/00Sliding-contact bearings for exclusively rotary movement6,151
- F16C 2326/00Articles relating to transportingIndexing code6,051
- F16C 11/00Pivots4,657
- F16C 35/00Rigid support of bearing units4,608
- F16C 2360/00Engines or pumpsIndexing code4,599
- F16C 29/00Bearings for parts moving only linearly3,629
All 54 main groupsShow fewer
- F16C 32/00Bearings not otherwise provided for3,274
- F16C 2361/00Apparatus or articles in engineering in generalIndexing code2,561
- F16C 27/00Elastic or yielding bearings or bearing supports, for exclusively rotary movement2,359
- F16C 3/00Shafts2,344
- F16C 2240/00Specified values or numerical ranges of parametersIndexing code2,335
- F16C 2226/00Joining partsIndexing code2,255
- F16C 41/00Shafts: other accessories2,192
- F16C 13/00Rolls, drums, discs, or the like2,110
- F16C 23/00Bearings for exclusively rotary movement adjustable for aligning or positioning2,025
- F16C 1/00Flexible shafts1,892
- F16C 2300/00Application independent of particular apparatusesIndexing code1,886
- F16C 43/00Assembling bearings1,740
- F16C 2370/00Apparatus relating to physicsIndexing code1,550
- F16C 25/00Bearings for exclusively rotary movement adjustable for wear or play1,528
- F16C 2380/00Electrical apparatusIndexing code1,327
- F16C 2220/00ShapingIndexing code1,255
- F16C 2322/00Apparatus used in shaping articlesIndexing code1,245
- F16C 2208/00PlasticsIndexing code1,180
- F16C 2204/00Metallic materialsIndexing code1,081
- F16C 7/00Connecting-rods or like links pivoted at both ends1,081
- F16C 2202/00Solid materials defined by their propertiesIndexing code998
- F16C 9/00Bearings for crankshafts or connecting-rods984
- F16C 2223/00Surface treatmentsIndexing code765
- F16C 37/00Cooling of bearings743
- F16C 39/00Relieving load on bearings713
- F16C 2352/00Apparatus for drillingIndexing code654
- F16C 2233/00Monitoring conditionIndexing code632
- F16C 2206/00Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials asIndexing code603
- F16C 2316/00Apparatus in health or amusementIndexing code559
- F16C 21/00Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary545
- F16C 2350/00Machines or articles related to buildingIndexing code390
- F16C 2229/00Setting preloadIndexing code348
- F16C 2340/00Apparatus for treating textilesIndexing code238
- F16C 2314/00Personal or domestic articlesIndexing code186
- F16C 2310/00Agricultural machinesIndexing code166
- F16C 31/00Bearings for parts which both rotate and move linearly129
- F16C 2362/00Apparatus for lighting or heatingIndexing code120
- F16C 2210/00FluidsIndexing code113
- F16C 2237/00Repair or replacementIndexing code95
- F16C 15/00Construction of rotary bodies to resist centrifugal force70
- F16C 5/00Crossheads67
- F16C 2320/00Apparatus used in separating or mixingIndexing code63
- F16C 2324/00Apparatus used in printingIndexing code44
- F16C 2231/00Running-inIndexing code38
- F16C 2235/00CleaningIndexing code25
- F16C 2212/00Natural materials, i.e. based on animal or plant products such as leatherIndexing code15
Recent patents
- Gear unit, geared motor and longitudinal adjuster6 Oct 2026US 12,752,669 B2Adient US LLC
- Hinge mechanism and electronic device6 Oct 2026US 12,753,791 B2Vivo Mobile Communication Co., Ltd.
- Pivot shaft assembly for a foldable device6 Oct 2026US 12,753,792 B2Step2Gold Co., Ltd.
- Roller flange, external rotor motor and conveyor roller6 Oct 2026US 12,753,793 B2LOGICDATA Electronic & Software Entwicklungs GmbH
- Precision sliding bearing6 Oct 2026US 12,753,794 B2
- Exciter apparatus8 Oct 2026US 2026/0307107 A1FLSmidth AVS
- Shaft bearing8 Oct 2026US 2026/0307773 A1thyssenkrupp AG
- Drive shaft with non-cylindrical shape8 Oct 2026US 2026/0309183 A1Hamilton Sundstrand Corporation
- Wear-resistant ball joint8 Oct 2026US 2026/0309184 A1Jason, Inc.
- Bearing device with integrated electrical insulation, in particular for an electric motor or machine8 Oct 2026US 2026/0309185 A1
Most cited
By later US patents
- Flexible structure1,770US 6,012,494 ADeutsche Forschungsanstalt fur Luft- und Raumfahrt e.V. · 2000
- Flexible shaft1,751US 6,053,922 A2000
- Atherectomy system with a clutch1,711US 5,002,553 ASurgical Systems & Instruments, Inc. · 1991
- Flexible shaft components1,670US 6,447,518 B12002
- Shaft, e.g., for an electro-mechanical surgical device1,633US 8,960,519 B2Covidien LP · 2015