DL
Diane K. Lettelleir
Frisco, TX·40 years licensed
Diane K. Lettelleir is a lawyer in Frisco, TX. Practice areas include Intellectual Property, Litigation: Commercial, Technology. Court admissions include Eighth Circuit Court of Appeals, Fifth Circuit Court of Appeals. Licensed in Texas since 1985. Graduated from Southern Methodist University in 1985.
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Law school
Bar admission
Office
Disciplinary
DL
Diane K. Lettelleir
Frisco, TX·40 years licensed
Claim profileContact attorney
Diane K. Lettelleir is a lawyer in Frisco, TX. Practice areas include Intellectual Property, Litigation: Commercial, Technology. Court admissions include Eighth Circuit Court of Appeals, Fifth Circuit Court of Appeals. Licensed in Texas since 1985. Graduated from Southern Methodist University in 1985.
Law school
Southern Methodist University
Class of 1985
Bar admission
1985
State Bar of TX · No. 12241525
Office
6430 Shorehaven Court
Frisco, TX 75035
Disciplinary
None on record
Clean since admission
Case data
Case data
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Practice & jurisdiction
Practice areas
- Intellectual Property
- Litigation: Commercial
- Technology
Courts admitted
- Eighth Circuit Court of Appeals
- Fifth Circuit Court of Appeals
- Second Circuit Court of Appeals
- Texas Eastern District Court
- Texas Northern District Court
- Texas Southern District/Bankruptcy Court
- US Court of Appeals for the Federal Circuit
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Last refreshed Jun 2026