Class B21L : MAKING CHAINS
Subclass 9/06: Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains (B21L 1/04, B21L 7/00, B21L 11/14, B21L 13/00 take precedence) of roller-chain or other plate-link type Sorting, feeding, assembling, riveting, or finishing parts of chains
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12234886 | Chain damping system and method | Mar 29, 22 | Feb 25, 25 | Not available |
| 12059723 | Chain tool for different speed chains | Aug 23, 21 | Aug 13, 24 | Not available |
| 11958102 | Systems and methods for repairing chains | May 14, 21 | Apr 16, 24 | Rexnord Industries LLC |
| 11518130 | Link press assembly and method of use | Oct 30, 20 | Dec 06, 22 | WTC Machinery, LLC |
| 11458529 | Chain tool | Jan 07, 20 | Oct 04, 22 | Not available |
| 11298741 | Chain replacement apparatus | Dec 02, 19 | Apr 12, 22 | Poul Chang Metal Industry Co., Ltd. |
| 11285527 | Methods of assembly for wedge clutch with wedge chain | Sep 24, 18 | Mar 29, 22 | Schaeffler Technologies AG & Co. KG |
| 10835982 | Machine component and method for producing the same | Nov 18, 14 | Nov 17, 20 | Komatsu Ltd. |
| 10830309 | Chain drive system having anti-rotation features between pivot pin and guide link and related assembly method | Jun 27, 18 | Nov 10, 20 | BorgWarner Inc. |
| 10443686 | Chain and manufacturing method of a chain | Jul 06, 17 | Oct 15, 19 | Daido Kogyo Co., Ltd. |
| 10260596 | Chain component and chain | Mar 27, 18 | Apr 16, 19 | Tsubakimoto Chain Co. |
| 10001207 | Tertiary chain lacing assembly | Oct 02, 17 | Jun 19, 18 | BorgWarner Inc. |
| 9975265 | Method for manufacturing, chain sub-units and machine | Aug 17, 15 | May 22, 18 | COSBERG S.p.A. |
| 9403565 | Track pin retention system and method | Aug 07, 12 | Aug 02, 16 | CATERPILLAR INC. |
| 9400033 | Method for producing a link-plate chain | Feb 27, 13 | Jul 26, 16 | SCHAEFFLER TECHNOLOGIES AG & CO. KG |
| 9308575 | Power transmission chain pin and manufacture method thereof | Dec 23, 11 | Apr 12, 16 | JTEKT CORPORATION |
| 9216783 | Cap and pin retention system | May 13, 14 | Dec 22, 15 | CATERPILLAR INC. |
| 9199302 | Assembly jig for pins for power transmission chain | Dec 07, 11 | Dec 01, 15 | JTEKT CORPORATION |
| 9174269 | Tool for connecting and disconnecting conveying chain and method | Jun 24, 14 | Nov 03, 15 | Ramsey Products Corporation |
| 9050649 | Assembly method and assembly equipment for power transmission chain | May 20, 14 | Jun 09, 15 | JTEKT CORPORATION |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0108,432 | Handheld Tool for Detaching and Attaching Agricultural Chain Link | Oct 02, 24 | Apr 03, 25 | Not available |
| 2025/0018,462 | PROCESSING CHAINS | Dec 03, 21 | Jan 16, 25 | Not available |
| 2020/0338,628 | CHAIN TOOL | Jan 07, 20 | Oct 29, 20 | Not available |
| 2018/0281,050 | LASER-MARKED CHAIN | Mar 30, 18 | Oct 04, 18 | Not available |
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