Description
Class B21L : MAKING CHAINS
Subclass 1/00: Making chains or chain links by bending workpieces of rod, wire, or strip to form links of oval or other simple shape (B21L 3/00, B21L 7/00 take precedence)
B21L 1/00
Sub-Class
Stats
- 1 US PATENTS IN FORCE
- 2 US APPLICATIONS PENDING
- 0 Total Patent Owners
- 12 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11850656 | Wedge driver and method therefor | Dec 13, 22 | Dec 26, 23 | BNSF Railway Company |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0123,491 | WEDGE DRIVER AND METHOD THEREFOR | Dec 20, 23 | Apr 18, 24 | BNSF Railway Company |
| 2022/0305,547 | WEDGE DRIVER AND METHOD THEREFOR | Mar 25, 21 | Sep 29, 22 | BNSF Railway Company |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 9 Months (last 2 years Issuances)
- 9 Months (last 5 years Issuances)