IP Library › Granted Patent US 638,793
Granted Patent S1
US 638,793 · App. 29/357,130 · Granted May 31, 2011

Frequency converter

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Quick Facts
Patent No.
US 638,793
App. No.
29/357,130
Granted
May 31, 2011
Kind
S1
Claims (1)

The ornamental design for a frequency converter, as shown and described.

Assignments (2)
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 →