Waalre, Netherlands

Johannes Josephus Maassen

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Asml Netherlands B.v.. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Johannes Josephus Maassen. Retrieved from https://idiyas.com/inventor/johannes-josephus-maassen

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: Innovator Spotlight: Johannes Josephus Maassen

Introduction: Johannes Josephus Maassen, based in Waalre, Netherlands, is a notable inventor recognized for his contributions to lithographic technology. With a keen focus on enhancing semiconductor manufacturing processes, Maassen holds a patent that reflects his innovative approach to substrate holders used in lithographic apparatus.

Latest Patents: Maassen's significant patented invention is titled "Substrate Holder for Use in a Lithographic Apparatus and a Device Manufacturing Method." This innovative substrate holder features a main body with a surface that incorporates several burls designed to support the substrate. An intriguing aspect of this invention is the edge seal, which is strategically spaced apart from the burls, creating a gap with a width equal to or greater than about 75% of the pitch of the burls. The patent ensures enhanced operational efficiency, as it also specifies that the stiffness in the direction perpendicular to the support plane of the second group of burls exceeds 150% that of the first group, optimizing substrate stability during lithographic processes.

Career Highlights: Johannes Maassen has made substantial contributions in his role at ASML Netherlands B.V., a leading provider of advanced semiconductor equipment. His work focuses on innovating techniques essential for the manufacturing of integrated circuits, which are critical in today's technology-driven world.

Collaborations: Throughout his career, Maassen has collaborated with talented colleagues, including André Schreuder and Herman Marquart. These partnerships underscore the collaborative spirit prevalent in the field of technology and innovation, allowing for the exchange of ideas that drives progress.

Conclusion: Johannes Josephus Maassen stands out as a noteworthy inventor whose patent contributions significantly elevate the standards in lithographic applications. His dedication to innovation within ASML Netherlands B.V. showcases the importance of research and collaboration in advancing technology, ultimately contributing to improved semiconductor manufacturing processes.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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