AttorneyBrett Aaron Mangrum● 20 total views
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Brett Aaron Mangrum

Cherry Johnson Siegmund James LLC·Waco, TX·17 years licensed

Brett Aaron Mangrum is a lawyer in Waco, TX who works for Cherry Johnson Siegmund James LLC. Practice areas include Intellectual Property. Court admissions include Texas Eastern District Court, Texas Northern District Court. Licensed in Texas since 2008. Graduated from Southern Methodist University in 2008.

Claim profileContact attorney
Law school
Class of 2008
Bar admission
2008
State Bar of TX · No. 24065671
Office
7901 Fish Pond Rd Fl 2
Waco, TX 76710
Disciplinary
None on record
Clean since admission
BM
Waco, TX·17 years licensed
Claim profileContact attorney

Brett Aaron Mangrum is a lawyer in Waco, TX who works for Cherry Johnson Siegmund James LLC. Practice areas include Intellectual Property. Court admissions include Texas Eastern District Court, Texas Northern District Court. Licensed in Texas since 2008. Graduated from Southern Methodist University in 2008.

Law school
Bar admission
2008
State Bar of TX · No. 24065671
Office
7901 Fish Pond Rd Fl 2
Waco, TX 76710
Disciplinary
None on record
Clean since admission
Career history

2 observed firms

Based on State Bar of Texas snapshots — each row is a firm the attorney was registered with at one of our quarterly pulls.

  1. Mangrum Law Group PLLCAS OF MAY 2023
    Private Law Practice · Mesquite, TX
  2. Cherry Johnson Siegmund James LLCAPR 2026 — PRESENT
    Private Law Practice · Waco, TX
Case data

Case data

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Practice & jurisdiction
Practice areas
  • Intellectual Property
Courts admitted
  • Texas Eastern District Court
  • Texas Northern District Court
  • Texas Western District Court
  • US Court of Appeals for the Federal Circuit
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Last refreshed Jun 2026