HC
Helena Castro
Barcelos, Portugal
Helena Castro is a trademark firm in Barcelos, Portugal, Top Rated for national trademark work on the cumulative record, one of 9,264 firms filing in Portugal, strongest in Clothing, Advertising and Fabrics, acting for CLAUSULAS ACESSIVEIS LDA, MARIBAT AÇO, UNIPESSOAL LDA and ANA MARIA FERNANDES MARTINS.
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Selected from 9,264 firms filing in Portugal
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IPRATE.EUTop Rated
TRADEMARKS · 2026
Confidence
High Confidence. The published tier reflects the selected country, vertical, track, and time window.
Vertical
Track
Window
Performance
Trademarks · National · Cumulative (20y)Rating
High Confidence
Archetype
Full-Service Generalist
Distinct Clients
14
Success Rate
100.0%
Volume100
Success65
Speed69
Durability59
Renewals72
Domestic63
Practice profile
Top classes
Clothing(18%) · Nice 25Advertising(18%) · Nice 35Fabrics(10%) · Nice 24
Top clients
- CLAUSULAS ACESSIVEIS LDA
- MARIBAT AÇO, UNIPESSOAL LDA
- ANA MARIA FERNANDES MARTINS
- ROGÉRIO BARBOSA, UNIPESSOAL LDA.
- JULIANA BATISTA DOS REIS