Guest Post: Vinson Conlan’s LED Patent Update

Lighting Science Group expanded their intellectual property for their LED Disc Light (Glimpse) with three recent patents.

The trio of patents cover LED light fixtures that are low profile and designed to cover recessed light fixtures and junction boxes. Most of these fixtures look like recessed trims with a lamp or a recessed light fixture trim with a lens.

Their latest patent is written to cover fixtures that are designed to cover a recessed light fixture housing and a junction box with a driver located between the light fixture and the junction box or recessed housing. The ratio of height to diameter is not included in the first claim as it was on the original patent, U.S. Patent No. 8,201,968 (‘968 Patent).

The combination of patents covers many fixture types currently manufactured in North America. Examples of their products can be found here.

The second patent, U.S. Patent No. 8,672,518, entitled “Low profile light and accessory kit for the same”, issued March 18, 2014.

U.S. Patent No. 8,967,844, entitled “Low profile light and accessory kit for the same” (‘844 Patent), issued on March 3, 2015. This is the third of the patents issued that provides coverage for their disc light LED product.

All of the patents claim the benefit of U.S. Provisional Application Ser. No. 61/248,665, filed Oct. 5, 2009.

The following description from the ‘968 Patent has been separated into two claims in the ‘844 Patent:

wherein the heat spreader, the heat sink and the outer optic, in combination, have an overall height H and an overall outside dimension D such that the ratio of H/D is equal to or less than 0.25; wherein the combination defined by the heat spreader, the heat sink and the outer optic, is so dimensioned as to: cover an opening defined by a nominally sized four-inch can light fixture; and, cover an opening defined by a nominally sized four-inch electrical junction box.

In place of the above, claim 1 in the ‘844 Patent adds the following:

…and a power conditioner disposed and configured to receive AC voltage from an electrical supply and to provide DC voltage for the plurality of LEDs; wherein the power conditioner is disposed, configured and sized to fit at least partially within an interior space of: a nominally sized can light fixture; and, a nominally sized electrical junction box.


Another recent patent of interest

Copper Technologies (see Halo brand products) was granted U.S. Patent No. 9,010,956,entitled “LED module with on-board reflector-baffle-trim ring” (‘956 Patent). Claim 1 reads as follows:

A light module, comprising:

a heat sink comprising an internal surface surrounding a heat sink cavity formed therein, the internal surface comprising:

a mounting region; and

a reflector region extending from the perimeter of the mounting region to a distal end;

one or more light sources coupled to the mounting region within the heat sink cavity; and

a plurality of mounting pads disposed circumferentially around a portion of the heat sink to separably couple the light module to a housing having a five inch diameter cavity or a housing having a six inch diameter cavity, each mounting pad comprising:

a first receiving hole; and

a second receiving hole,

wherein either the first receiving hole or the second receiving hole is coupled to a torsion spring,

wherein when the torsion spring is coupled to the first receiving hole, the light module is coupled to the housing having the five inch diameter cavity, and

wherein when the torsion spring is coupled to the second receiving hole, the light module is coupled to the housing having the six inch diameter cavity.

One of the embodiments, which is on the shelf at a popular retail DIY chain, can be seen here.

The ‘956 Patent protects their current low cost LED trim; many low cost trims use a similar construction.


Vinson Conlan has been developing light fixtures for nearly 30 years and has spent the last 9 years specializing in LED products. He has 8 US patents and has a broad range of experience working for family owned businesses as well as Fortune 100 companies. Vinson currently heads up product development for a leading company in the solid state lighting industry.

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Eric Lane

Eric Lane, the founder and principal of Green Patent Law, is an intellectual property lawyer and registered U.S. patent attorney in New York and is a member of the bar in New York and California. Eric has more than two decades of experience working with wind, solar PV, CSP, biofuels, and geothermal, energy storage technologies, carbon capture and sequestration, medical devices, data communications, mechanical, chemical, internet and software.