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Donald John Verplancken
Donald John Verplancken is a lawyer in Houston, TX who works for Patterson & Sheridan. Practice areas include Intellectual Property. Licensed in Texas since 1986. Graduated from Indiana University School of Law in 1985.
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Law school
Bar admission
Office
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Donald John Verplancken
Patterson & SheridanHouston, TX·40 years licensed
Claim profileContact attorney
Donald John Verplancken is a lawyer in Houston, TX who works for Patterson & Sheridan. Practice areas include Intellectual Property. Licensed in Texas since 1986. Graduated from Indiana University School of Law in 1985.
Law school
Indiana University School of Law
Class of 1985
Bar admission
1986
State Bar of TX · No. 20553600
Office
24 Greenway Plaza, Suite 1600
Houston, TX 77046
Disciplinary
None on record
Clean since admission
Case data
Case data
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Practice & jurisdiction
Practice areas
- Intellectual Property
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Last refreshed Jun 2026