Atty. Oona M. Johnstone

Atty. Oona M. Johnstone

Oona M. Johnstone is a Patent Law attorney in Boston, MA. Read Oona M. Johnstone's profile to learn more about them and discover their Best Lawyers rankings.

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Oona M. Johnstone is an attorney, practicing at Constangy, Brooks, Smith & Prophete LLP.

Verified attorney profile · Updated October 2026

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