Description
Class B21F : WORKING OR PROCESSING OF WIRE
Subclass 3/06: Coiling wire into particular forms helically internally on a hollow form
B21F 3/06
Sub-Class
Stats
- 12 US PATENTS IN FORCE
- 2 US APPLICATIONS PENDING
- 7 Total Patent Owners
- 30 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11964321 | Coiling machine, method for manufacturing coil spring, and coil spring | Jun 28, 21 | Apr 23, 24 | NHK Spring Co. Ltd. |
| 10618098 | Servo-rotating all-function tool module for use with spring forming machine | May 03, 17 | Apr 14, 20 | Not available |
| 10556265 | Coiling machine and manufacturing method of coil spring | Aug 25, 17 | Feb 11, 20 | NHK Spring Co., Ltd. |
| 10350669 | Controlling device for coil spring bending tool and controlling method therof | Jan 22, 15 | Jul 16, 19 | Not available |
| 10286435 | Wire forming machine | Jun 15, 18 | May 14, 19 | ASAHI-SEIKI MANUFACTURING CO., LTD. |
| 10052677 | Spring forming device and forming method therefor | Oct 08, 14 | Aug 21, 18 | NHK SPRING CO., LTD. |
| 9744584 | Hot formed coiling machine | Mar 27, 14 | Aug 29, 17 | DAE WON KANG UP CO., LTD. |
| 9700932 | Wire-forming mechanism for spring making machine | May 14, 15 | Jul 11, 17 | PLUSPRINGS MACHINERY CO.,LTD |
| 9500217 | Method for producing threaded parts | Jun 26, 13 | Nov 22, 16 | Not available |
| 8978434 | Method and equipment for making a spring | Oct 26, 09 | Mar 17, 15 | Ressorts Huon Dubois |
| 8910501 | Winding mandrel for vasoocclusive coils | Oct 07, 13 | Dec 16, 14 | DEPUY SYNTHES PRODUCTS, LLC |
| 5444905 | Apparatus for manufacturing mattresses and box springs | Mar 14, 94 | Aug 29, 95 | UBS AG |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2019/0039,118 | Coil Spring Winding Apparatus and Method of Winding A Coil Spring | Feb 03, 16 | Feb 07, 19 | Not available |
| 2014/0311,204 | SPRING WINDING MACHINE WITH AN ADJUSTABLE CUTTING DEVICE | Apr 14, 14 | Oct 23, 14 | WAFIOS AKTIENGESELLSCHAFT |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 27 Months (last 2 years Issuances)
- 27 Months (last 5 years Issuances)