Description
Class B21K : MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS
Subclass 1/20: Making machine elements valve parts
B21K 1/20
Sub-Class
Stats
- 38 US PATENTS IN FORCE
- 2 US APPLICATIONS PENDING
- 31 Total Patent Owners
- 438 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12092224 | Lined butterfly valve and method for manufacturing lined butterfly valve | Dec 28, 20 | Sep 17, 24 | Kitz Corporation |
| 11731600 | ABS pressure control valve assembly | Sep 23, 19 | Aug 22, 23 | Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbH |
| 11311964 | Internally cooled valve having a valve bottom, and method for the production thereof | Aug 07, 18 | Apr 26, 22 | Federal-Mogul Valvetrain GmbH |
| 11305333 | Methods for forming low stress component for medical devices | Mar 31, 20 | Apr 19, 22 | INSULET CORPORATION |
| 11149857 | Appliance for making isotropically finished seal ring of seal assembly for machine | Dec 14, 20 | Oct 19, 21 | Caterpillar Inc. |
| 11131397 | Electric ball valve and manufacturing method therefor | Jun 21, 19 | Sep 28, 21 | Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd |
| 10927959 | Method and appliance for making isotropically finished seal ring of seal assembly for machine | Feb 27, 19 | Feb 23, 21 | Caterpillar Inc. |
| 10576529 | Open die forging process for minimizing end losses and a product made using it | Aug 14, 15 | Mar 03, 20 | Bharat Forge Limited |
| 10094248 | Lash adjuster and method of making same | Mar 02, 16 | Oct 09, 18 | Eaton Corporation |
| 10029298 | Bar material transfer method and conveyor | Mar 27, 13 | Jul 24, 18 | NITTAN VALVE CO., LTD. |
| 9556755 | Cam follower for a valve train of an internal combustion engine | Jan 20, 14 | Jan 31, 17 | SCHAEFFLER TECHNOLOGIES AG & CO. KG |
| 9138802 | Forging system for forging a valve | Mar 30, 12 | Sep 22, 15 | NITTAN VALVE CO., LTD. |
| 8991349 | Involute spring pallet component for a cylinder deactivation switchable roller finger follower | Jan 30, 13 | Mar 31, 15 | SCHAEFFLER TECHNOLOGIES AG & CO. KG |
| 8959772 | Multipoint injector for turbomachine | Mar 23, 12 | Feb 24, 15 | SNECMA |
| 8881391 | Method for producing hollow engine valve | Sep 24, 10 | Nov 11, 14 | MITSUBISHI HEAVY INDUSTRIES, LTD., Yoshimura Company, |
| 8869377 | Integrated valve sleeve | Apr 13, 11 | Oct 28, 14 | INDIMET INC. |
| 8671966 | Needleless access port valves | Jun 03, 11 | Mar 18, 14 | B. BRAUN MEDICAL INC. |
| 8646479 | Singulation of valves | Feb 03, 10 | Feb 11, 14 | KCI LICENSING, INC., KCI MEDICAL RESOURCES, LTD., |
| 8572833 | Method and apparatus for retaining an ornament | Apr 26, 10 | Nov 05, 13 | SWAROVSKI LIGHTING, LTD. |
| 8522434 | Method for production of valve head portion of hollow engine valve and hollow engine valve | Sep 17, 09 | Sep 03, 13 | FUJI HOLLOW VALVE INC., Yoshimura Company, |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2022/0049,650 | RELIEF VALVE FOR A TURBOCHARGER AND PROCESS FOR MANUFACTURING A RELIEF VALVE | Sep 12, 19 | Feb 17, 22 | Not available |
| 2021/0362,214 | FORMED OUTER ARM FOR ROCKER ARM ASSEMBLY | Aug 05, 21 | Nov 25, 21 | EATON INTELLIGENT POWER LIMITED |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 38 Months (last 2 years Issuances)
- 38 Months (last 5 years Issuances)