IP Library › Granted Patent US 833,670
Granted Patent S1
US 833,670 · App. 29/567,112 · Granted Nov 13, 2018

Progressive fresnel lens element

Inventor: Feng Zhao (Oakland, NJ)
Assignee: AMERLUX LLC
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Quick Facts
Patent No.
US 833,670
App. No.
29/567,112
Granted
Nov 13, 2018
Kind
S1
Claims (1)

The ornamental design for a progressive fresnel lens element, as shown and described.

Assignments (2)
CHANGE OF NAME Recorded Dec 1, 2024
From: AMERLUX, LLC
To: DELTA INTELLIGENT BUILDING TECHNOLOGIES (USA), LLC
Reel/Frame 069465/0394 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 19, 2016
From: ZHAO, FENG
To: AMERLUX LLC
Reel/Frame 040673/0050 →