Description
Class B23P : OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
Subclass 15/06: Making specific metal objects by operations not covered by a single other subclass or a group in this subclass piston rings from one piece
B23P 15/06
Sub-Class
Stats
- 35 US PATENTS IN FORCE
- 3 US APPLICATIONS PENDING
- 13 Total Patent Owners
- 136 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11897065 | Composite turbine disc rotor for turbomachine | Jan 30, 20 | Feb 13, 24 | Honeywell International, Inc. |
| 11162587 | Piston ring and method for manufacturing a piston ring | May 02, 19 | Nov 02, 21 | MAHLE International GmbH |
| 11060609 | Method for producing a piston ring | Jul 13, 18 | Jul 13, 21 | Federal Mogul Burscheid GmbH |
| 11047479 | Method for producing piston ring with recess | Nov 15, 19 | Jun 29, 21 | Nippon Piston Ring Co. Ltd. |
| 10946459 | Magnetorheological support method for blisk processing | Sep 29, 19 | Mar 16, 21 | DALIAN UNIVERSITY OF TECHNOLOGY |
| 10514097 | Method for producing piston ring with recess | Aug 09, 17 | Dec 24, 19 | NIPPON PISTON RING CO., LTD |
| 10480332 | Rotors and methods of making the same | Apr 19, 17 | Nov 19, 19 | General Electric Company |
| 10428945 | Inlaid ring with plated lateral side | Oct 12, 16 | Oct 01, 19 | Mahle International GmbH |
| 10323747 | Piston ring and method for manufacturing a piston ring | Mar 28, 17 | Jun 18, 19 | MAHLE International GmbH |
| 10006546 | Piston ring | Sep 26, 14 | Jun 26, 18 | Kabushiki Kaisha Riken |
| 9909210 | Chemical vapor deposition of wear resistant coatings onto piston ring running face, side face, and inner diameter in one coating run | Oct 11, 13 | Mar 06, 18 | FEDERAL-MOGUL LLC |
| 9829105 | Nitride coated piston ring | Jun 15, 15 | Nov 28, 17 | MAHLE INTERNATIONAL GMBH, MAHLE ENGINE COMPENTS USA, |
| 9731388 | Method and fixture for airfoil array assembly | Dec 01, 15 | Aug 15, 17 | UNITED TECHNOLOGIES CORPORATION |
| 9719596 | Piston ring for internal combustion engines with increased fatigue strength, and method for producing same | Oct 29, 13 | Aug 01, 17 | FEDERAL-MOGUL BURSCHEID GMBH |
| 9638321 | Method for producing an oil scraper piston ring | Apr 25, 13 | May 02, 17 | FEDERAL-MOGUL BURSCHEID GMBH |
| 9638322 | Piston ring with dual coating | Dec 30, 13 | May 02, 17 | MAHLE INTERNATIONAL GMBH |
| 9506138 | Piston ring | Apr 23, 15 | Nov 29, 16 | NIPPON PISTON RING CO., LTD. |
| 9494233 | Low tension piston rings and method for manufacturing the same | Jan 21, 16 | Nov 15, 16 | FEDERAL-MOGUL LLC |
| 9434031 | Method and fixture for airfoil array assembly | Sep 26, 12 | Sep 06, 16 | UNITED TECHNOLOGIES CORPORATION |
| 9352427 | Method for producing piston rings | Feb 02, 12 | May 31, 16 | FEDERAL-MOGUL BURSCHEID GMBH |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2022/0145,990 | WIRE FOR PISTON RING, AND MANUFACTURING METHOD OF PISTON RING | Dec 17, 20 | May 12, 22 | Not available |
| 2017/0016,537 | OIL SCRAPER PISTON RING AND METHOD FOR PRODUCING AN OIL SCRAPER PISTON RING | Mar 04, 15 | Jan 19, 17 | FEDERAL-MOGUL BURSCHEID GMBH |
| 2015/0240,943 | REDUCED FRICTION OIL CONTROL PISTON RINGS | Sep 24, 13 | Aug 27, 15 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 32 Months (last 2 years Issuances)
- 32 Months (last 5 years Issuances)