
Von Wobeser y Sierra, SC is trusted by global players across innovative sectors, including tech and entertainment, to handle the prosecution and defence of their IP rights as well as to manage contentious matters, including infringement and cancellation actions. Patricia Kaim is the lead practitioner, concentrating on IP matters and driving the practice’s development. Additional depth is provided by (non-legal) patent associate Efrén Sánchez. However, former associate Alejandra Neiszer left the firm in July 2025, as did senior Víctor González in September.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Von Webeser & Sierra undoubtedly stands out for its personalised approach and specialised experience. Their interdisciplinary collaboration allows them to offer an efficient service tailored to their clients' needs, positioning themselves favourably compared to other firms in the legal sector. I love working with people as capable as they are.'
- ‘The lawyers at Von Wobeser y Sierra stand out from the competition with their client service. Their qualities include exceptional negotiation skills, a strong commitment to the brands they represent, and above all, a great sense of urgency and responsibility. Partners like Victor are recognised for their leadership and ability to build solid relationships, which reinforces the firm's reputation.
Key clients
- Effem México Inc. y Compañía
- Mars, Incorporated
- Dude Products
- Sram Corporation
- Mayacert
- Club de Futbol Rojinegros
- Cellestron Acquisition
- American Axle & Manufacturing
- Nike Innovate
- Medical Management International
- Staedtler
- Jenny’s Rose
- Balenciaga
Work highlights
Representing Dude Products in combating counterfeit DUDE WIPES in Mexico by opposing bad-faith trade mark applications that mimic its trade dress and branding, aiming to block market entry and protect consumer trust.
Secured the transfer of the domain banfield.com.mx for Medical Management International by enforcing its established BANFIELD trade mark rights, safeguarding the client’s digital presence and underscoring the importance of trade mark enforcement in the online space.
Protected Procter & Gamble’s IP rights in Mexico, most recently by developing and executing a trade mark protection strategy for the “MR. CLEAN” brand, which includes filing multiple oppositions to block third-party applications for similar marks and prevent consumer confusion in the cleaning products sector.
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head
Patricia Kaim
Other key lawyers
Alejandra Neiszer; Efrén Sánchez; Víctor González
