Federal Circuit Affirms Co-Inventor Rights in Gas Cylinder Transport Patent Dispute: Campbell v. TUBE-MAC Industries
Was möchten Sie als Nächstes tun?
Wählen Sie Ihren Weg entsprechend Ihren aktuellen Bedürfnissen:
📋 Fallzusammenfassung
| Fallbezeichnung | Campbell v. TUBE-MAC Industries, Inc. |
| Fallnummer | 22-2170 (Fed. Cir.) |
| Gericht | Bundesberufungsgericht, Berufung gegen das Urteil des Bezirksgerichts |
| Dauer | Aug 2022 – Mar 2024 562 days |
| Ergebnis | Co-Inventorship Affirmed |
| Streitige Patente | |
| Beschuldigte Produkte | Methods of fabricating Type 4 cylinders and transportation housings for gaseous fluids |
Fallübersicht
Die Parteien
⚖️ Kläger
Individual plaintiff asserting sole inventorship rights over patents relating to Type 4 composite cylinder technology.
🛡️ Beklagter
Established industrial manufacturer contesting Campbell’s sole inventorship claim, with operations in pressure piping and fluid conveyance systems. Individual defendants Gary Mackay and Dan Hewson were affirmed as co-inventors.
Die streitigen Patente
Two patents covering methods of fabricating and arranging Type 4 cylinders for gaseous fluid transport were central to this dispute. Type 4 cylinders are critical for hydrogen transport, clean energy, and industrial gas applications.
- • U.S. Patent No. 9,376,049 — Method of fabricating Type 4 cylinders and arranging them in transportation housings.
- • U.S. Patent No. 9,965,780 — Related continuation covering similar subject matter.
Entwickeln Sie eine ähnliche Technologie?
Ensure your IP ownership and inventorship are clear from the outset.
Das Urteil und die rechtliche Analyse
Ergebnis
The Federal Circuit **affirmed** the district court’s decision, confirming that **Gary Mackay and Dan Hewson are co-inventors on U.S. Patent No. 9,376,049**. The court found Campbell’s remaining arguments unpersuasive, issuing a straightforward affirmance without remand.
Wichtige rechtliche Fragen
The Federal Circuit’s analysis focused on the critical ‘inventorship question’ under 35 U.S.C. § 256, evaluating whether individuals contributed to the conception of at least one claim. The court reinforced the ‘clear and convincing evidence’ standard required to overturn inventorship determinations on appeal, underscoring the demanding evidentiary burden in such disputes.
Inventorship & Patent Ownership Analysis
This case highlights critical IP risks in Type 4 cylinder technology and collaborative development. Choose your next step:
📋 Die Auswirkungen dieses Falls verstehen
Informieren Sie sich über die spezifischen Risiken und Auswirkungen dieses Rechtsstreits.
- Alle zugehörigen Patente in diesem Technologiebereich anzeigen
- See which companies are most active in Type 4 cylinder IP
- Understand inventorship claim patterns
🔍 Check My Collaboration’s Risk
Run a comprehensive IP ownership analysis for your own technology or product.
- Input your project description or technical contributions
- AI identifies potentially ambiguous inventorship situations
- Get actionable IP ownership assessment report
Inventorship Challenges
Collaborative development creates risks
Verwandte Patente
In Type 4 cylinder space
Clear IP Agreements
Unverzichtbar für die Risikominderung
✅ Wichtigste Erkenntnisse
Inventorship determinations require *clear and convincing evidence* to disturb on appeal — build the evidentiary record at the district court level.
Verwandte Rechtsprechung suchen →Co-inventorship under § 256 turns on conceptual contribution to at least one claim; reduction-to-practice contributions alone are insufficient.
Präzedenzfälle erkunden →Pro se patent appellants face significant structural disadvantages before the Federal Circuit, reinforcing the value of specialized counsel.
Understand appellate strategy →Audit inventorship records on patents developed in collaborative or multi-party environments, particularly in clean energy and industrial manufacturing sectors.
Das Risiko meines Portfolios einschätzen →Co-inventor status creates independent licensing rights — a material consideration in M&A due diligence and portfolio transactions.
Learn more about licensing →Early IP ownership agreements in joint development relationships are essential risk management tools to prevent future disputes.
View agreement templates →Häufig gestellte Fragen
The case centered on U.S. Patent No. 9,376,049 (App. No. 14/239,938) and U.S. Patent No. 9,965,780 (App. No. 15/688,566), both covering methods of fabricating Type 4 cylinders for gaseous fluid transport.
The court found that Mackay and Hewson qualified as co-inventors on the ‘049 patent based on their conceptual contributions, and that Campbell failed to present persuasive arguments sufficient to overcome the district court’s findings under the clear-and-convincing evidence standard.
The decision reinforces that collaborative industrial development creates shared inventorship exposure. Companies in composite cylinder and hydrogen transport sectors should proactively audit inventorship documentation and implement robust IP ownership agreements in joint development contexts.
Sind Sie bereit, Ihre Patentstrategie zu stärken?
Schließen Sie sich den über 18.000 Fachleuten aus dem Bereich des geistigen Eigentums an, die PatSnap Eureka nutzen, um mit KI-gestützter Präzision Recherchen zum Stand der Technik durchzuführen, Patentanmeldungen zu erstellen und Wettbewerbslandschaften zu analysieren.
Referenzen
- United States Court of Appeals for the Federal Circuit — Case 22-2170 (Campbell v. TUBE-MAC Industries, Inc.)
- USPTO Patent Public Search
- PACER — Federal Circuit Docket Records (Case No. 22-2170)
- Cornell Legal Information Institute — 35 U.S.C. § 256
- PatSnap – Lösungen für den Umgang mit geistigem Eigentum für Anwaltskanzleien
Dieser Artikel dient ausschließlich zu Informationszwecken und stellt keine Rechtsberatung dar. Alle Angaben zu den Fällen stammen aus öffentlich zugänglichen Gerichtsakten. Informationen zu den Funktionen der Plattform finden Sie auf PatSnap.