Emergency lighting devices with LED strings
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 16, 2018
Issued Date -
N/A
app pub date -
Nov 14, 2012
filing date -
Dec 12, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Emergency lighting devices and methods are disclosed. An emergency lighting device includes a first group of solid state emitters configured to emit light of a first color. The emergency lighting device also includes a second group connected in series to the first group and configured to emit a second color. The groups are configured to receive a normal operation current from an LED driver at the input end of the first group and output the normal operation current at the output end of the second group. In an emergency, the first group receives an emergency operation current from an emergency LED driver at an emergency input and outputs the emergency operation current at an emergency output located.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- H02J Class
- 3166 Applications Filed
- 2735 Patents Issued To-Date
- 86.39 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- H02J Class
- 22.71 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 16, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 16, 2029 |
