IP Library › Granted Patent US 586,744
Granted Patent S1
US 586,744 · App. 29/317,361 · Granted Feb 17, 2009

Frequency converter

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 586,744
App. No.
29/317,361
Granted
Feb 17, 2009
Kind
S1
Claims (1)

The ornamental design for a frequency converter, as shown.

Assignments (3)
CHANGE OF NAME Recorded Jul 13, 2024
From: VACON OY
To: DANFOSS DRIVES OY
Reel/Frame 068321/0125 →
CHANGE OF NAME Recorded Jul 26, 2016
From: VACON OYJ
To: VACON OY
Reel/Frame 039466/0181 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 9, 2009
From: JASKARI, JUKKA TIMO JOHANNES
To: VACON OYJ
Reel/Frame 022082/0441 →