What follows is an opinion from a United States Court of Appeals.
Intervenors who participated as parties at the courts of appeals should be counted as either appellants or respondents when it can be determined whose position they supported. For example, if there were two plaintiffs who lost in district court, appealed, and were joined by four intervenors who also asked the court of appeals to reverse the district court, the number of appellants should be coded as six.
Your task is to determine or not there was any amicus participation before the court of appeals.

Opinion:
Harry A. NOYES, Appellant, v. Conway P. COE, Commissioner of patents, Appellee.
No. 8819.
United States Court of Appeals District of Columbia.
Argued May 15, 1945.
Decided May 28, 1945.
Mr. Herbert A. Baker, of Washington, D. C., with whom Mr. William M. Cushman, of Washington, D. C, was on the brief, for appellant.
Mr. E. L. Reynolds, of Washington, D. C., with whom Mr. W. W. Cochran, Solicitor, United States Patent Office, of Washington, D. C, was on the brief, for appellee.
Before MILLER, EDGERTON, and ARNOLD, Associate Justices.
PER CURIAM.
The findings and judgment of the trial court find full support in the record. Appellant has failed to meet the burden imposed upon a plaintiff in a Section 4915 proceeding and is not entitled to a patent.
Affirmed.
35 U.S.C.A. § 63; Abbott v. Coe, 71 App.D.C. 195, 197, 198, 109 F.2d 449, 451, 452; Daniels v. Coe, 73 App.D.C. 54, 58, 116 F.2d 941, 945; Morrison v. Coe, 75 U.S.App.D.C. 219, 220, 127 F.2d 737, 738.

Question: Was there any amicus participation before the court of appeals?

Choices:
no amicus participation on either side
1 separate amicus brief was filed
2 separate amicus briefs were filed
3 separate amicus briefs were filed
4 separate amicus briefs were filed
5 separate amicus briefs were filed
6 separate amicus briefs were filed
7 separate amicus briefs were filed
8 or more separate amicus briefs were filed
not ascertained

Answer: 0