Published, November 25, 2025
The Largest Patent Prosecution Firms in Spain 2019-2023
Data in this report is sourced from IP Pilot and is accurate as of November 2025 and is based on the number of patent filings first published between 2019 and 2023. Because patent data may be subject to reporting delays in public databases, figures may fluctuate over time.
Spain functions as a strategic bridge connecting European and Latin American patent markets. The Spanish patent ecosystem evolved steadily 2019–2023 across independent and multinational IP providers, adapting to global disruptions while serving domestic and international clients. Close to 30,000 patents were published in Spain between 2019 and 2023, with a staggering 77% of these handled by the top 25 firms.
The data used in this report was sourced from IP Pilot, an IP intelligence platform for law firms that analyzes agents, clients, and their relationships. This report covers patent prosecution activity in Spain from 2019 to 2023, including total filing volumes, annual trends, foreign client share, and PCT filing share for the leading firms.
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Rank: Top 25 Patent Prosecution Firms in Spain
HERRERO & ASOCIADOS leads the Spanish market with over 2,800 filings across five years, balancing domestic and international clients.
A tier of five firms each exceed 1,700 filings, led by PONS PATENTES Y MARCAS, BALDER IP, UNGRIA PATENTES Y MARCAS, and ABG INTELLECTUAL PROPERTY.
Boutique specialists ARPE PATENTES Y MARCAS (merged into Herrero & Asociados as of November 2023) and SILEX IP CONSULTING (integrated into PONS IP as of May 2024) serve a client base that is over 90% foreign, positioning themselves as trusted international partners.
This mix of high-volume firms and foreign-specialized boutiques reflects the maturity and diversity of Spain’s patent services market.
Five firms operate significantly in South America: HERRERO & ASOCIADOS, PONS IP, UNGRIA PATENTES Y MARCAS, BALDER IP, and CLARKMODET GROUP. HOFFMANN EITLE ranks as Germany’s top IP law firm.
See also our reports on the Mexico, Brazil (2019-2023), and Germany (2019-2023) patent markets.
Spain: Number of Patent Applications and Shares of Foreign Filings per Firm
Filing Trends Over Time: Growth in Spain
Rising stars are reshaping the mid-tier of the market:
- ARPE PATENTES Y MARCAS — up 205%, the most dramatic rise in the ranking.
- PADIMA, AGENTES DE LA PROPIEDAD INDUSTRIAL — up 88%.
- INGENIAS — up 98%, with 42% foreign filings and 61% PCT filings.
Established leaders are holding their position: UNGRIA, ZBM PATENTS, and CLARKEMODET retain strong market presence through deep expertise and reputation.
At the same time, this evolving landscape is also creating new opportunities for mid-sized and emerging firms to grow, particularly those offering niche specialization, personalized service, or innovative approaches to client engagement.
Spain’s Role in the Global IP Ecosystem
Spain received strong inbound filing activity between 2019 and 2023. The United States was the largest contributor with roughly 2,000 filings, followed by China (1,477 filings), with Germany, South Korea, the Netherlands, and Italy rounding out the top tier. This high level of inbound activity reflects Spain’s importance as an EU gateway for global innovators and a preferred jurisdiction for regional patent protection.
Spanish firms also support domestic clients filing abroad, led overwhelmingly by the United States (3,654 filings). China, Japan, Canada, Brazil, and Mexico are fast-growing destinations, signaling the rising international ambitions of Spanish companies and research institutions.
Countries Sending Most Cases to Spain: Country Breakdown 2019-2023
Countries Receiving Most Cases from Spain: Country Breakdown 2019-2023
Top Technical Fields: Where Innovation Is Happening
Filing activity by sector, 2019–2023:
| Sector | Filings | Notes |
|---|---|---|
| Medical Technology | 3,819 | Healthcare and medical device innovation |
| Pharmaceuticals | 3,424 | Up 43% over the period |
| Biotechnology | 2,210 | Up 45% |
| Electrical Machinery, Apparatus, Energy | 2,511 | Clean energy and smart infrastructure |
| Handling, Transport, Civil Engineering | 8,225 combined | Infrastructure, mobility, and logistics focus |
These trends align with national R&D priorities and public investment strategies, especially in life sciences, mobility, and digital transformation.
Rising Tech Sectors: What’s Growing Fast?
- Macromolecular Chemistry & Polymers — up 69%.
- Basic Materials Chemistry — up 53%.
- Biotechnology — up 45%.
- Organic Fine Chemistry — up 40%.
- Pharmaceuticals — up 43%.
These increases suggest a shift toward more complex, materials-intensive innovation, spanning packaging, bioplastics, chemicals, and drug delivery technologies. Environmental technologies and medical diagnostics are also growing quickly, supported by public funding and global market demand.
Fields in Decline: Strategic Caution Zones
- Textile & Paper Machinery — down 20%.
- Telecommunications — down 30%.
- Control Systems — down 19%.
- Analysis of Biological Materials — down 21%.
- Microstructure & Nanotechnology — down 48%.
While not necessarily disappearing, these areas may require renewed innovation or specialization to regain momentum.
Strategic Insights for Law Firms Targeting the Spanish Patent Market
- Partner identification and collaboration opportunities. Spanish firms range from established players to fast-growing boutiques. Foreign firms can use the data to identify partners with technical field expertise in pharma, biotech, and energy; select firms experienced in foreign filings with a majority international clientele; and target rising firms that signal client satisfaction and scalability — through referral agreements, co-counsel work, or joint marketing.
- Client development: where demand lies. Patent activity concentrates in life sciences, advanced chemistry and materials, and clean energy and electrical systems. Firms with clients in these sectors should prioritize Spain for filings and enforcement strategy.
- Optimizing filing routes. Spain shows strong PCT-based application activity, positioning it as a cost-effective EU gateway with strong enforcement infrastructure and reliable long-term prosecution support.
- Outbound opportunities for growth. Spanish firms actively file into the US, China, Japan, Canada, and Latin America, creating mutual referral potential. International firms can position as filing partners for Spanish clients seeking protection abroad, or as trainers and tech-transfer advisors for Spain’s innovation hubs and universities.
Conclusion
Spain’s 2019–2023 patent prosecution landscape demonstrates growth, global integration, and strategic repositioning. Market leaders include HERRERO & ASOCIADOS, PONS PATENTES Y MARCAS, and BALDER IP, with emerging challengers creating rich competitive opportunity.
Spain’s role as both an inbound and outbound patent hub underlines its importance in global IP strategies. Whether you’re a multinational entering Europe or a Spanish innovator eyeing global markets, the local patent ecosystem offers deep technical expertise and a broad reach.
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