MDSP Technologies, LLC v. TomTom North America, Inc.
Infringement action filed 6 Apr 2023 in the United States District Court for the Western District of Texas and closed 6 Sep 2023, with 2 patents asserted. Recorded basis of termination: voluntary dismissal.
Case record
- Patents involved
- US9239376B2US10371806B2
- Case no.
- 6:23-cv-00260
- Verdict cause
- Infringement action
- Court
- W.D. Tex.
- Court level
- District Court
- Case region
- Texas
- Chief judge
- Alan D Albright
- Trial level
- First instance
- Filed – Closed
- 6 Apr 2023 – 6 Sep 2023
- Duration
- 153 days
- Basis of termination
- Voluntary dismissal
- Products & marks
- Doppler aided inertial navigation
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Doppler aided inertial navigation
Doppler Aided Inertial Navigation (DAIN) facilitates the determination of position, velocity and direction of mobile devices operating in highly obstructed GPS/GNSS environments. Delivering high precision, high resolution positioning information using signals of opportunity, the present invention measures the Doppler shift of a moving device using a variety of signals combined with inertial accelerometers and environmental sensors to deliver an autonomous positioning and navigation capability that does not require external infrastructure or a priori knowledge of signal sources.
- Legal status
- Active
- Granted
- 19 Jan 2016
- Earliest priority
- 8 Oct 2010
- Est. expiry
- 8 Jul 2034
- Validity challenges
- 1 on record90015299 · EPR
- Licences recorded
- None recorded
- Inventors
- MATHEWS, MICHAEL B. · MACDORAN, PETER F.
- Classification
- G01S11/10G01C21/16G01S5/02
- Prosecution counsel
- Tarolli, Sundheim, Covell & Tummino LLP
- Examiner
- ISSING, GREGORY C
Doppler aided inertial navigation
Doppler Aided Inertial Navigation (DAIN) facilitates the determination of position, velocity and direction of mobile devices operating in highly obstructed GPS/GNSS environments. Delivering high precision, high resolution positioning information using signals of opportunity, the present invention measures the Doppler shift of a moving device using a variety of signals combined with inertial accelerometers and environmental sensors to deliver an autonomous positioning and navigation capability that does not require external infrastructure or a priori knowledge of signal sources.
- Legal status
- Active
- Granted
- 6 Aug 2019
- Earliest priority
- 8 Oct 2010
- Est. expiry
- 8 Nov 2032
- Validity challenges
- None recorded
- Licences recorded
- None recorded
- Inventors
- MATHEWS, MICHAEL B. · MACDORAN, PETER F.
- Classification
- G01S11/10G01S5/02G01C21/16
- Prosecution counsel
- Tarolli, Sundheim, Covell & Tummino LLP
- Examiner
- GREGORY, BERNARR E
Parties of record
MDSP Technologies, LLC
- Core tech
- G01S11/10G01C21/16G01S5/02
- Counsel
- R. Scott Rhoades · Sanford E. Warren Jr.
- Firm
- Warren Rhoades LLP
TomTom North America, Inc.
- Core tech
- Not recorded
- Counsel
- Henry M. Purtill · Jacob J. Alexander · Mark D. Siegmund · Wesley W. Whitmyer
- Firm
- Cherry Johnson Siegmund James PLLC, Whitmyer IP Group LLC
Counsel of record
| Attorney | For | Role |
|---|---|---|
| R. Scott Rhoades | MDSP Technologies, LLC | Plaintiff |
| Sanford E. Warren Jr. | MDSP Technologies, LLC | Plaintiff |
| Henry M. Purtill | TomTom North America, Inc. | Defendant |
| Jacob J. Alexander | TomTom North America, Inc. | Defendant |
| Mark D. Siegmund | TomTom North America, Inc. | Defendant |
| Wesley W. Whitmyer | TomTom North America, Inc. | Defendant |
Basis of termination
From the record · verbatim“Pursuant to Federal Rule of Civil Procedure 41(a)(1)A)(i), Plaintiff MDSP Technologies LLC (“Plaintiff”) dismisses Plaintiff’s claims without prejudice, with all attorneys’ fees, costs, and expenses to be borne by the party incurring the same.”
Case 6:23-cv-00260 · W.D. Tex. · closed 6 September 2023
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Frequently asked questions
What is case 6:23-cv-00260?
6:23-cv-00260 is a patent infringement action brought by MDSP Technologies, LLC against TomTom North America, Inc., filed on 6 Apr 2023 in the United States District Court for the Western District of Texas. The case closed on 6 September 2023.
Which patents were asserted in 6:23-cv-00260?
US9239376B2 (“Doppler aided inertial navigation”), assigned to MDSP TECHNOLOGIES, LLC, currently active; US10371806B2 (“Doppler aided inertial navigation”), assigned to MDSP TECHNOLOGIES, LLC, currently active. The record also lists Doppler aided inertial navigation.
How was case 6:23-cv-00260 terminated?
The recorded basis of termination is voluntary dismissal. The termination text reads: “Pursuant to Federal Rule of Civil Procedure 41(a)(1)A)(i), Plaintiff MDSP Technologies LLC (“Plaintiff”) dismisses Plaintiff’s claims without prejudice, with all attorneys’ fees, costs, and expenses to be borne by the party incurring the same.”
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 6:23-cv-00260 take?
153 calendar days, from filing on 6 Apr 2023 to closure on 6 September 2023.
Who were the attorneys and the judge in 6:23-cv-00260?
Chief Judge Alan D Albright presided. R. Scott Rhoades and Sanford E. Warren Jr. are recorded as counsel for plaintiff MDSP Technologies. Henry M. Purtill, Jacob J. Alexander, Mark D. Siegmund and Wesley W. Whitmyer appear for defendant TomTom North America.
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