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David Santos Silva

IPRATE RatedRATED

Lisboa, Portugal

David Santos Silva is a trademark firm in Lisboa, Portugal, Rated for national trademark work on the emerging five-year record, one of 4,583 firms filing in Portugal, strongest in Toys, Construction and Education, acting for ANGEL'S INSTITUTE, UNIPESSOAL LDA, RUI SANHA - CANALIZAÇÕES, UNIPESSOAL LDA and ISABEL PATRÍCIA CANCELA FERREIRA.

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Selected from 4,583 firms filing in Portugal

Rated 17 October 2026 · official records counted to 31 January 2026. Scoring counts filings from 1 May 2004 onward. Why.

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Confidence

High Confidence. The published tier reflects the selected country, vertical, track, and time window.

Vertical
Track
Window

Performance

Trademarks · National · Emerging (5y)

Rating

IPRATE RatedRATEDHigh Confidence

Archetype

Full-Service Generalist

Distinct Clients

6

Success Rate

100.0%

VolumeSuccessSpeedDurability (N/A)Renewals (N/A)Domestic
Volume81
Success64
Speed68
DurabilityN/A
RenewalsN/A
Domestic68

Practice profile

Top classes

Toys(17%) · Nice 28Construction(17%) · Nice 37Education(17%) · Nice 41

Top clients

  1. ANGEL'S INSTITUTE, UNIPESSOAL LDA
  2. RUI SANHA - CANALIZAÇÕES, UNIPESSOAL LDA
  3. ISABEL PATRÍCIA CANCELA FERREIRA
  4. LUSO PADEL - GESTÃO E EXPLORAÇÃO DE ESPAÇOS DESPORTIVOS, LDA
  5. FABRICE MICHEL RAYMOND POLTEAU