F16D
Couplings for transmitting rotation
Official title: Couplings for transmitting rotation; clutches; brakes
F16D (Couplings for transmitting rotation) appears on 42,419 US grants and 32,796 published applications in this corpus.
Search patents in F16D- Granted patents
- 42,419
- Published applications
- 32,796
- Assignees
- 8,596
- Inventors
- 54,745
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 585 | 0 |
| 1977 | 537 | 0 |
| 1978 | 521 | 0 |
| 1979 | 324 | 0 |
| 1980 | 520 | 0 |
| 1981 | 554 | 0 |
| 1982 | 465 | 0 |
| 1983 | 420 | 0 |
| 1984 | 588 | 0 |
| 1985 | 599 | 0 |
| 1986 | 709 | 0 |
| 1987 | 714 | 0 |
| 1988 | 577 | 0 |
| 1989 | 740 | 0 |
| 1990 | 655 | 0 |
| 1991 | 683 | 0 |
| 1992 | 648 | 0 |
| 1993 | 525 | 0 |
| 1994 | 538 | 0 |
| 1995 | 519 | 0 |
| 1996 | 640 | 0 |
| 1997 | 609 | 0 |
| 1998 | 697 | 0 |
| 1999 | 818 | 0 |
| 2000 | 852 | 0 |
| 2001 | 948 | 285 |
| 2002 | 882 | 825 |
| 2003 | 816 | 939 |
| 2004 | 754 | 1131 |
| 2005 | 637 | 1037 |
| 2006 | 737 | 1120 |
| 2007 | 618 | 1085 |
| 2008 | 596 | 1137 |
| 2009 | 566 | 1136 |
| 2010 | 680 | 1153 |
| 2011 | 745 | 1054 |
| 2012 | 952 | 1024 |
| 2013 | 1027 | 1221 |
| 2014 | 1113 | 1414 |
| 2015 | 1331 | 1678 |
| 2016 | 1241 | 1685 |
| 2017 | 1453 | 1876 |
| 2018 | 1502 | 1862 |
| 2019 | 1697 | 1895 |
| 2020 | 1692 | 1853 |
| 2021 | 1510 | 1523 |
| 2022 | 1460 | 1479 |
| 2023 | 1298 | 1388 |
| 2024 | 1297 | 1194 |
| 2025 | 1116 | 1045 |
| 2026 | 714 | 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
- F16D 65/00Parts or details9,143
- F16D 3/00Yielding couplings, i.e. with means permitting movement between the connected parts during6,523
- F16D 55/00Brakes with substantially-radial braking surfaces pressed together in axial direction4,534
- F16D 1/00Couplings for rigidly connecting two coaxial shafts or other movable machine elements4,442
- F16D 2121/00Type of actuator operation forceIndexing code4,211
- F16D 13/00Friction clutches3,890
- F16D 25/00Fluid-actuated clutches3,609
- F16D 48/00External control of clutches3,503
All 49 main groupsShow fewer
- F16D 2125/00Components of actuatorsIndexing code3,486
- F16D 41/00Freewheels or freewheel clutches3,284
- F16D 2500/00External control of clutches by electric or electronic meansIndexing code2,981
- F16D 69/00Friction linings2,577
- F16D 2300/00Special features for couplings or clutchesIndexing code2,458
- F16D 23/00Details of mechanically-actuated clutches not specific for one distinct type2,355
- F16D 27/00Magnetically- or electrically- actuated clutches1,835
- F16D 43/00Automatic clutches1,690
- F16D 2250/00ManufacturingIndexing code1,650
- F16D 66/00Arrangements for monitoring working conditions1,609
- F16D 11/00Clutches in which the members have interengaging parts1,526
- F16D 7/00Slip couplings1,348
- F16D 2200/00MaterialsIndexing code1,303
- F16D 2127/00Auxiliary mechanismsIndexing code1,183
- F16D 63/00Brakes not otherwise provided for1,048
- F16D 21/00Systems comprising a plurality of actuated clutches1,038
- F16D 51/00Brakes with outwardly-movable braking members co-operating with the inner surface of a869
- F16D 67/00Combinations of couplings and brakes793
- F16D 59/00Self-acting brakes782
- F16D 35/00Fluid clutches in which the clutching is predominantly obtained by fluid adhesion695
- F16D 28/00Electrically-actuated clutches631
- F16D 49/00Brakes with a braking member co-operating with the periphery of a drum582
- F16D 2123/00Multiple operation forcesIndexing code526
- F16D 47/00Systems of clutches, or clutches and couplings, comprising devices of types grouped441
- F16D 57/00Liquid-resistance brakes427
- F16D 31/00Fluid couplings or clutches with pumping sets of the volumetric type, i.e.371
- F16D 9/00Couplings with safety member for disconnecting328
- F16D 61/00Brakes with means for making the energy absorbed available for use299
- F16D 33/00Rotary fluid couplings or clutches of the hydrokinetic type297
- F16D 2129/00Type of operation source for auxiliary mechanismsIndexing code282
- F16D 37/00Clutches in which the drive is transmitted through a medium consisting of277
- F16D 15/00Clutches with wedging balls or rollers or with other wedgeable separate clutching236
- F16D 29/00Clutches and systems of clutches involving both fluid and magnetic actuation124
- F16D 39/00Combinations of couplings according to two or more of the groups f16d31/0049
- F16D 71/00Mechanisms for bringing members to rest in a predetermined position47
- F16D 2131/00Overall arrangement of the actuators or their elementsIndexing code44
- F16D 45/00Freewheels or freewheel clutches combined with automatic clutches39
- F16D 53/00Brakes with braking members co-operating with both the periphery and the inner33
- F16D 19/00Clutches with mechanically-actuated clutching members not otherwise provided for25
- F16D 17/00Clutches in which the drive is transmitted solely by virtue of the15
- F16D 5/00Impulse couplings, i.e. couplings that alternately accelerate and decelerate the driven member15
Recent patents
- Electric transmission with friction clutch disengagement device6 Oct 2026US 12,752,616 B2Dana Automotive Systems Group, LLC
- Electro-mechanical brake and control method therefor6 Oct 2026US 12,752,751 B2Hyundai Mobis Co., Ltd.
- Disc brake device6 Oct 2026US 12,752,756 B2Akebono Brake Industry Co., Ltd.
- Electronic parking brake apparatus6 Oct 2026US 12,752,760 B2Hyundai Mobis Co., Ltd.
- Warped rotor detection6 Oct 2026US 12,752,763 B2Rivian IP Holdings, LLC
- Driveline assembly park brake for a work vehicle8 Oct 2026US 2026/0307480 A1Deere & Company
- Electric machine comprising a clutch assembly8 Oct 2026US 2026/0309086 A1Unison Industries, LLC
- Drive shaft with non-cylindrical shape8 Oct 2026US 2026/0309183 A1Hamilton Sundstrand Corporation
- Axle service disconnect with shaft support8 Oct 2026US 2026/0309192 A1Magna Powertrain of America, Inc.
- Spatially elastic coupling and coupling arrangement8 Oct 2026US 2026/0309193 A1Kwd Kupplungswerk Dresden GmbH
Most cited
By later US patents
- Motorized cutting and fastening instrument having control circuit for optimizing battery usage1,886US 8,622,274 B2Ethicon Endo-Surgery, Inc. · 2014
- Flexible structure1,770US 6,012,494 ADeutsche Forschungsanstalt fur Luft- und Raumfahrt e.V. · 2000
- Atherectomy system with a clutch1,711US 5,002,553 ASurgical Systems & Instruments, Inc. · 1991
- Synchronizer for a gear shift mechanism for a marine propulsion system1,418US 6,062,360 ABrunswick Corporation · 2000
- Synchronizer clutch assembly for multiple ratio gearing1,374US 5,531,305 ABorg-Warner Automotive, Inc. · 1996