Description
Class B21K : MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS
Subclass 1/04: Making machine elements ball-races
B21K 1/04
Sub-Class
Stats
- 41 US PATENTS IN FORCE
- 5 US APPLICATIONS PENDING
- 19 Total Patent Owners
- 196 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12209614 | Bearing element manufacturing method, bearing manufacturing method, machine manufacturing method, vehicle manufacturing method, bearing element, bearing, machine, and vehicle | Jul 06, 21 | Jan 28, 25 | NSK LTD. |
| 12083573 | Tubular rotary component, manufacturing method therefor, and mold therefor | Jul 18, 19 | Sep 10, 24 | 501 Nippon Steel Corporation |
| 11867232 | Forged outer ring | Jun 01, 22 | Jan 09, 24 | Aktiebolaget SKF |
| 11162538 | Method and device for manufacturing bearing unit | Dec 02, 19 | Nov 02, 21 | NSK LTD. |
| 11105373 | Method for non-cutting manufacturing of a bearing ring for a rolling bearing and rolling bearing comprising the bearing ring | Jun 08, 16 | Aug 31, 21 | Schaeffler Technologies AG & Co. KG |
| 10632524 | Method for processing precision forging of bearing ring | May 25, 18 | Apr 28, 20 | Shanghai Dianji University |
| 10557505 | Method and device for manufacturing bearing unit | Jul 12, 16 | Feb 11, 20 | NSK LTD. |
| 10533605 | Method for producing an internally structured slide bearing bushing | Nov 09, 15 | Jan 14, 20 | Wieland Werke AG |
| 10465744 | Angular contact ball bearing having a cold-formed bearing ring, and a method for manufacturing a bearing ring of said angular contact ball bearing | Jun 08, 16 | Nov 05, 19 | Scjaeffer Technologies AG & Co. KG |
| 10272485 | Method for manufacturing ring-shaped member | Feb 12, 15 | Apr 30, 19 | NSK LTD. |
| 10213825 | Method for manufacturing cylindrical ring member, bearing, clutch, vehicle, and machine | Jul 18, 17 | Feb 26, 19 | NSK LTD. |
| 10144984 | Method of producing roughly shaped material for rolling bearing | Oct 27, 14 | Dec 04, 18 | Nippon Steel & Sumitomo Metal Corporation |
| 10137541 | Method for manufacturing bearing ring member | Apr 22, 14 | Nov 27, 18 | NSK Ltd. |
| 10119600 | Recirculating ball nut, assembly for a ballscrew drive and method for producing a recirculating ball nut | Jan 27, 15 | Nov 06, 18 | TRW Automotive GmbH |
| 9737926 | Ball screw and manufacturing method of nut for ball screw | Apr 03, 15 | Aug 22, 17 | NSK LTD. |
| 9623772 | Method for producing a vehicle seat fitting | Jul 18, 12 | Apr 18, 17 | KEIPER GMBH & CO. KG |
| 9545660 | Method for producing a formed part furnished with a through hole | Nov 26, 10 | Jan 17, 17 | HATEBUR UMFORMMASCHINEN AG |
| 9346097 | Process for manufacturing rolling contact member, process for manufacturing rolling bearing, raceway member of rolling bearing and rolling bearing | Dec 02, 11 | May 24, 16 | NTN CORPORATION |
| 9297411 | Bearing assemblies, apparatuses, and motor assemblies using the same | Mar 28, 12 | Mar 29, 16 | US SYNTHETIC CORPORATION |
| 9120142 | Method for producing a molded part provided with a through-hole | Oct 02, 09 | Sep 01, 15 | HATEBUR UMFORMMASCHINEN AG |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0092,914 | BEARING ELEMENT MANUFACTURING METHOD, BEARING MANUFACTURING METHOD, MACHINE MANUFACTURING METHOD, VEHICLE MANUFACTURING METHOD, BEARING ELEMENT, BEARING, MACHINE, AND VEHICLE | Dec 04, 24 | Mar 20, 25 | NSK LTD. |
| 2025/0001,483 | PROCESS FOR PRODUCING BLANKS OF RINGS | Sep 16, 24 | Jan 02, 25 | Not available |
| 2024/0139,798 | MANUFACTURING METHOD OF BALL SCREW USING ROLLING MACHINE | Dec 10, 21 | May 02, 24 | Hitachi Astemo, Ltd. |
| 2023/0076,653 | APPARATUS AND PROCESS FOR PRODUCING BLANKS OF RINGS OR TUBULAR MEMBERS | Feb 04, 21 | Mar 09, 23 | Not available |
| 2018/0272,420 | METHOD FOR PROCESSING PRECISION FORGING OF BEARING RING | May 25, 18 | Sep 27, 18 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 39 Months (last 2 years Issuances)
- 39 Months (last 5 years Issuances)