This educational guide is based on the linked primary sources. It is not a Court publication, is not affiliated with the Court, and is not legal advice.
In brief
Overview
The petitioner argued that the case concerns whether the Federal Circuit can assert jurisdiction over patent counterclaims, potentially excluding regional circuit courts.
A preliminary injunction issued in January 2000 remains in effect pending a $100,000 bond.
Background and question before the Court
The Supreme Court heard oral argument for this case at 11:11 a.m.
According to Chief Justice, the Court questioned whether Congress intended patent law to be uniform.
According to Chief Justice, the Court also asked whether the Federal Circuit has jurisdiction over patent counterclaims or only compulsory counterclaims.
What each side argues
Petitioner Position
The petitioner argued that the Federal Circuit’s jurisdiction may be overly expansive, potentially excluding regional circuits.
According to Mr. Dabney, the petitioner contended that the respondent’s position would require the Court to retreat from the Christianson precedent and adopt a special interpretation of the “arising under” language.
Respondent Position
According to Respondent (via Mr. Gowdey), according to Respondent (via Mr. Gowdey), the respondent argued that the district court retains original jurisdiction through a patent counterclaim, as illustrated by the Cardinal case.
According to Mr. Gowdey, the respondent explained that a well‑pled patent counterclaim at the pleading stage could place appellate jurisdiction in the Federal Circuit under the Aerojet rule.
What happened at oral argument
Oral argument began before the Supreme Court at 11:11 a.m.
The petitioner, Mr. Dabney, argued that the Federal Circuit’s jurisdiction may be overly expansive, potentially excluding regional circuits.
The Chief Justice asked whether Congress intended patent law to be uniform.
The Chief Justice also asked whether the Federal Circuit has jurisdiction over patent counterclaims or only compulsory counterclaims.
According to Justice O'Connor, justice O’Connor posed a question during the argument.
According to Justice, a Justice questioned whether the appellate meaning of “arising under” excludes counterclaims for original jurisdiction purposes.
Mr. Gowdey stated that there has not been a patent ruling in the case.
According to Mr. Gowdey, mr. Gowdey explained that a well‑pled patent counterclaim at the pleading stage could place appellate jurisdiction in the Federal Circuit under the Aerojet rule.
Mr. Dabney argued that the respondent’s position would require the Court to retreat from the Christianson precedent and adopt a special interpretation of the “arising under” language.
- [1] c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdf, p. 1
- [2] c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdf, p. 3
- [3] c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdf, p. 4
- [4] c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdf, p. 5
- [5] c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdf, p. 20
- [6] c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdf, p. 37
- [7] c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdf, p. 38
- [8] c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdf, p. 40
- [9] c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdf, p. 45
What the Court decided
Why it matters
Terms to know
No glossary terms are available for this guide.
Primary sources
Read the source materials on the official site or open the immutable repository copy used for this guide.
- c8753ff10bfaefe30987-r1-f500a1969ce2a7ec.pdforal argument transcript
Guide generated September 19, 2026. Automated validation accepted this version.