| SANO PATENT & TRADEMARK OFFICE CO., LIMITED | Private company limited by shares | Live |
| PATENT SEASON LIMITED | Private company limited by shares | Dissolved |
| Prollectual Trade Mark & Patent Services Limited | Private company limited by shares | Dissolved |
| IPPAT (PATENT AND TRADEMARK) SERVICES LIMITED | Private company limited by shares | Dissolved |
| KIN SHING PATENT & TRADE MARK AGENT LIMITED | Private company limited by shares | Live |
| PATENT SHIPPING LIMITED | Private company limited by shares | Dissolved |
| SIWON PATENT AGENT LIMITED | Private company limited by shares | Live |
| PATENT SOURCE TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUCCESS PATENT LIMITED | Private company limited by shares | Live |
| HK CHINA PATENT TECH EXPO LIMITED | Private company limited by shares | Dissolved |
| PATENT TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| PATENT TECHNOLOGY RESEARCH LIMITED | Private company limited by shares | Live |
| STANDARD PATENT & TRADEMARK AGENT LIMITED | Private company limited by shares | Live |
| CHINA TRADEMARK & PATENT LAW OFFICE LIMITED | Private company limited by shares | Live |
| LUNG TIN PATENT TRADEMARK AGENT LIMITED | Private company limited by shares | Live |
| CHINA TRADEMARK & PATENT (NOMINEES) LIMITED | Private company limited by shares | Live |
| Patent Technology Trading Limited | Private company limited by shares | Live |
| Universal Patent Agency Limited | Private company limited by shares | Dissolved |
| WENPING PATENT & TRADE MARK AGENT LIMITED | Private company limited by shares | Live |
| WORLD INTELLECTUAL PROPERTY PATENT ASSOCIATION LIMITED -THE- | Private company limited by shares | Dissolved |
| XIAN YINUO PATENT AGENT LIMITED | Private company limited by shares | Live |
| PATENT YEAR LIMITED | Private company limited by shares | Dissolved |
| PATENTA ASIA LIMITED | Private company limited by shares | Live |
| PATENTED FASHION GARMENT LIMITED | Private company limited by shares | Dissolved |
| Patentius Limited | Private company limited by shares | Live |
| PatentPia Limited | Private company limited by shares | Live |
| Lam Patents Limited | Private company limited by shares | Live |
| FOUNDERS-ASIA PATENTS LIMITED | Private company limited by shares | Dissolved |
| MICKLEWRIGHT PATENTS LIMITED | | Live |
| HK PATENTTRAN LIMITED | Private company limited by shares | Live |