delivered the opinion of the court.

The patent law of February, 1861, gives to parties to suits arising under any law of the United States giving to inventors the exclusive right to their inventions or discoveries, a writ of error or appeal to the Supreme Court of the United States without regard to the sum in controversy. The act of 1870 does not alter the right of appeal or to a writ of error in this respect.

The motion to dismiss must, therefore, be

Denied.