sgreen为什么连接不上

Drawing upon decades of experience, Oppedahl Patent Law Firm LLC provides patent, trademark, copyright, and related intellectual property services to clients in the United States and around the world.

The people of OPLF have obtained:

• over eight hundred US utility patents
• over three hundred US design patents
• over five hundred US trademark registrations

The people of OPLF have handled over a hundred matters before the Trademark Trial and Appeal Board of the United States Patent and Trademark Office.

sgreen为什么连接不上

• Patent and trademark firms outside of the United States
• Businesses
• Patent and trademark practitioners in the United States
• Individual inventors
• Persons who think they might be interested in patent law as a career