BX Led, LLC v. RAB Lighting, Inc.
Infringement action filed 13 Jun 2023 in the United States District Court for the Northern District of Texas and closed 1 Sep 2023, with 8 patents asserted. Recorded basis of termination: voluntary dismissal.
Case record
- Patents involved
- US8203260B2US10966300B2US7901109B2US7973465B2US9913333B2US6869812B1US8143769B2US8567988B2
- Case no.
- 3:23-cv-01323
- Verdict cause
- Infringement action
- Court
- N.D. Tex.
- Court level
- District Court
- Case region
- Texas
- Chief judge
- Jane J Boyle
- Trial level
- First instance
- Filed – Closed
- 13 Jun 2023 – 1 Sep 2023
- Duration
- 80 days
- Basis of termination
- Voluntary dismissal
- Products & marks
- Color temperature tunable white light source · Efficient LED array · Heat sink apparatus for solid state lights · High power AllnGaN based multi-chip light emitting diode · Light emitting diode (LED) lighting device · Light emitting diode with thin multilayer phosphor film · Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs
Check this patent against your own product
Prior art, claim scope, infringement exposure and design-around routes. Every answer cites the records behind it.
Get an FTO claim chart- 01Ranked prior artEvery hit source-linked
- 02Claim-level comparisonAgainst your own product
- 03Legal statusAcross 174 jurisdictions
Color temperature tunable white light source
A color temperature tunable white light source comprises: first and second LED arrangements operable to emit light of first and second wavelength range respectively that are configured such that their combined light output, which comprises light generated by the source, appears white in color. One or both LED arrangements comprises a phosphor provided remote to an associated LED operable to generate excitation radiation and to irradiate the phosphor such that it emits light of a different wavelength range, wherein the light emitted by the LED arrangement comprises the combined light from the LED and phosphor. The color temperature of output white light is tunable by controlling the relative light outputs of the LED arrangements by for example controlling the relative magnitude of the drive currents of the LEDs or a duty cycle of a pulse width modulated drive current.
- Legal status
- Active
- Granted
- 19 Jun 2012
- Est. expiry
- 24 Feb 2029
- Validity challenges
- None recorded
- Licences recorded
- None recorded
- Inventors
- LI, YI-QUN · DONG, YI · XU, XIAOFENG
- Classification
- H01J1/62H05B44/00F21V9/40
- Prosecution counsel
- WSGR
- Examiner
- BECK, ALEXANDER S
Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs
A light source and method for making the same are disclosed. The light source includes a plurality of Segmented LEDs connected in parallel to a power bus and a controller. The power bus accepts a variable number of Segmented LEDs. The controller receives AC power and provides a power signal on the power bus. Each Segmented LED is characterized by a driving voltage that is greater than 3 times the driving voltage of a conventional LED fabricated in the same material system as the Segmented LED. The number of Segmented LEDs in the light source is chosen to compensate for variations in the light output of individual Segmented LEDs introduced by the manufacturing process. In another aspect of the invention, the number of Segmented LEDs connected to the power bus can be altered after the light source is assembled.
- Legal status
- Active
- Granted
- 30 Mar 2021
- Est. expiry
- 26 Feb 2029
- Validity challenges
- None recorded
- Licences recorded
- None recorded
- Inventors
- HASNAIN, GHULAM · HU, SYN-YEM · LESTER, STEVEN D.
- Classification
- H05B45/46H01L33/62H01L25/075H05B45/10H05B45/48H05B45/50H05B47/185H05B33/10H01L27/15H05B44/00
- Prosecution counsel
- ArentFox Schiff LLP
- Examiner
- JOHNSON, AMY COHEN
Also asserted in this case
6 moreThe docket lists 8 asserted patents. Full bibliographic detail, drawings and prosecution history for the remaining 6 asserted patents are one query away in Eureka.
- US7901109B2Heat sink apparatus for solid state lights
- US7973465B2Light emitting diode with thin multilayer phosphor film
- US9913333B2Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs
- US6869812B1High power AllnGaN based multi-chip light emitting diode
- US8143769B2Light emitting diode (LED) lighting device
- US8567988B2Efficient LED array
Parties of record
BX Led, LLC
- Core tech
- H01J1/62H05B44/00F21V9/40H05B45/46
- Counsel
- Andrew Lin · Matthew C. Acosta · Nicholas C. Kliewer
- Firm
- Platt Cheema Richmond PLLC
RAB Lighting, Inc.
- Core tech
- Not recorded
- Counsel
- Not recorded
- Firm
- Not recorded
Counsel of record
| Attorney | For | Role |
|---|---|---|
| Andrew Lin | BX Led, LLC | Plaintiff |
| Matthew C. Acosta | BX Led, LLC | Plaintiff |
| Nicholas C. Kliewer | BX Led, LLC | Plaintiff |
Basis of termination
From the record · verbatim“Pursuant to Federal Rule 41(a)(1)(A)(i), Plaintiff BX LED LLC (“BX” or “Plaintiff”) hereby gives notice that this action is voluntarily dismissed. Defendant RAB Lighting, Inc. (“RAB” or “Defendant”) has not served an answer or motion for summary judgment in this action. Accordingly, Plaintiff notices voluntary dismissal of this action, without prejudice. See FED. R. CIV. P. 41(a)(1)(B).”
Case 3:23-cv-01323 · N.D. Tex. · closed 1 September 2023
Related cases
Three questions this record usually leads to. Each one runs against the full litigation and patent corpus, and cites what it finds.
Frequently asked questions
What is case 3:23-cv-01323?
3:23-cv-01323 is a patent infringement action brought by BX Led, LLC against RAB Lighting, Inc., filed on 13 Jun 2023 in the United States District Court for the Northern District of Texas. The case closed on 1 September 2023.
Which patents were asserted in 3:23-cv-01323?
US8203260B2 (“Color temperature tunable white light source”), assigned to BX LED, LLC, currently active; US10966300B2 (“Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs”), assigned to BX LED, LLC, currently active; US7901109B2 (“Heat sink apparatus for solid state lights”), assigned to BX LED, LLC; US7973465B2 (“Light emitting diode with thin multilayer phosphor film”), assigned to BX LED, LLC; US9913333B2 (“Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs”), assigned to BX LED, LLC; US6869812B1 (“High power AllnGaN based multi-chip light emitting diode”), assigned to BX LED, LLC; US8143769B2 (“Light emitting diode (LED) lighting device”), assigned to BX LED, LLC; US8567988B2 (“Efficient LED array”), assigned to BX LED, LLC. The record also lists Color temperature tunable white light source, Efficient LED array, Heat sink apparatus for solid state lights, High power AllnGaN based multi-chip light emitting diode, Light emitting diode (LED) lighting device, Light emitting diode with thin multilayer phosphor film and Light sources utilizing segmented LEDs to compensate for manufacturing variations in the light output of individual segmented LEDs.
How was case 3:23-cv-01323 terminated?
The recorded basis of termination is voluntary dismissal. The termination text reads: “Pursuant to Federal Rule 41(a)(1)(A)(i), Plaintiff BX LED LLC (“BX” or “Plaintiff”) hereby gives notice that this action is voluntarily dismissed. Defendant RAB Lighting, Inc. (“RAB” or “Defendant”) has not served an answer or motion for summary judgment in this action. Accordingly, Plaintiff notices voluntary dismissal of this action, without prejudice. See FED. R. CIV. P. 41(a)(1)(B).”
What does dismissal without prejudice mean?
A dismissal without prejudice ends this action but leaves the claims alive — the plaintiff may file them again later, subject to the limitation period.
How long did case 3:23-cv-01323 take?
80 calendar days, from filing on 13 Jun 2023 to closure on 1 September 2023.
Who were the attorneys and the judge in 3:23-cv-01323?
Chief Judge Jane J Boyle presided. Andrew Lin, Matthew C. Acosta and Nicholas C. Kliewer are recorded as counsel for plaintiff BX Led.
Disclaimer. This page reproduces publicly available court docket data for case 3:23-cv-01323 and is provided for general information and reference only. It is not legal advice and must not be relied upon as such.
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No characterisation of the parties or the outcome. This page reports what the record contains. Nothing here should be read as an assertion that any party infringed, that any patent is valid or invalid, that any settlement occurred, or that any party prevailed.
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