Which Firms Filed the Most Oppositions in 2011?

As many have come to expect, here is our annual compilation of firms that filed the most oppositions in 2011*.

Click on the [+] to expand details for each firm to show all plaintiffs and case links. Aside from the top 3 firms, the differences between most firms are quite close. There are actually 41 firms that filed at least 20 oppositions last year. Also noteworthy is that the top 5 firms represent more than 10% of all oppositions filed.

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Note: The list shown here includes just the top 16 ranked firms. Our complete list of the 41 top ranked firms by oppositions filed (including links to each individual TTAB case) is available. Request your copy.

* Based upon correspondent at filing

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