Class F16F : SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
Subclass 1/22: Springs (working with fluid F16F 5/00, F16F 9/00) made of steel or other material having low internal friction (F16F 1/36 takes precedence); Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant Leaf springs with means for modifying the spring characteristic
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11454992 | Flexure guidance system | May 24, 19 | Sep 27, 22 | Meta Platforms Technologies, LLC |
| 11192266 | Variable stiffness series elastic actuator | Apr 14, 17 | Dec 07, 21 | Marquette University |
| 11015669 | Bi-directional non-linear spring | Jul 02, 19 | May 25, 21 | Raytheon Company |
| 11007835 | Spring assembly for a vehicle suspension | Oct 04, 18 | May 18, 21 | Ford Global Technologies, LLC |
| 11001114 | Variable rate flat spring arrangement | May 12, 16 | May 11, 21 | Rassini Suspensiones, S.A. de C.V. |
| 10792969 | Longitudinal leaf spring device for suspension of a motor vehicle body | Oct 17, 18 | Oct 06, 20 | Ford Global Technologies, LLC |
| 10724400 | Support assembly having variable stiffness member | Apr 10, 18 | Jul 28, 20 | General Electric Company |
| 10703156 | Variable rate flat spring arrangement | Oct 16, 19 | Jul 07, 20 | Rassini Suspensiones, S.A. de C.V. |
| 10598404 | Damper with adjustable resistance to blade motion | Jun 26, 17 | Mar 24, 20 | Research Products Corporation |
| 10422397 | Methods to dynamically alter the stiffness of nonlinear structures | Mar 14, 14 | Sep 24, 19 | HRL Laboratories, LLC |
| 10414229 | Leaf spring system | Jan 13, 12 | Sep 17, 19 | Sax Suspension Technology Pty. Ltd. |
| 10371224 | Spring for a vehicle | Dec 04, 15 | Aug 06, 19 | Hendrickson Commerical Vehicle Systems Europe GmbH |
| 10337577 | Bi-directional non-linear spring | Nov 04, 16 | Jul 02, 19 | Raytheon Company |
| 10260586 | Adjustable negative stiffness systems | Jan 12, 17 | Apr 16, 19 | HRL Laboratories, LLC |
| 10233991 | Adjustable negative stiffness mechanisms | Jan 12, 17 | Mar 19, 19 | HRL Laboratories, LLC |
| 10124641 | Leaf spring holder for the mounting of a leaf spring onto an axle body of a vehicle | Dec 02, 16 | Nov 13, 18 | Benteler Automobiltechnik GmbH |
| 9897161 | Hingeless, large-throw negative stiffness structure | Dec 09, 14 | Feb 20, 18 | HRL LABORATORIES, LLC |
| 9840012 | Variable stiffness actuator with large range of stiffness | Apr 24, 14 | Dec 12, 17 | MARQUETTE UNIVERSITY |
| 9599180 | Beam-based nonlinear spring | May 03, 16 | Mar 21, 17 | MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
| 9382960 | Beam-based nonlinear spring | Jan 23, 15 | Jul 05, 16 | MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2023/0366,442 | LEAF SPRING WITH HIGH RESOLUTION STIFFNESS CONTROL | Sep 08, 21 | Nov 16, 23 | Not available |
| 2023/0313,857 | LEAF SPRING THAT PROVIDES MULTIPLE SPRING RATES | Sep 28, 20 | Oct 05, 23 | OLGUN CELIK SANAYI VE TICARET ANONIM SIRKETI |
| 2018/0320,747 | Springs with Dynamically Variable Stiffness and Actuation Capability | Nov 03, 16 | Nov 08, 18 | Not available |
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