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For the Inventor, By the Inventor

Eindhoven, Netherlands

Lodewijk J Van Ruyven

This inventor holds 5 USPTO granted patents. Top assignee: U.S. Philips Corporation. Active years: 1981-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Lodewijk J Van Ruyven. Retrieved from https://idiyas.com/inventor/lodewijk-j-van-ruyven

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

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 1.3

ph-index = 4

Forward Citations = 92(Granted Patents)


Company Filing History:

goldMedal5 out of 14,087 
 
U.S. Philips Corporation
 patents

Years Active: 1981-1990

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5 patents (USPTO):Explore Patents
1. 4952015 - Radiation coupling device (1990-08-28),
2. 4645915 - Bar code reader (1987-02-24),
3. 4644553 - Semiconductor laser with lateral injection (1987-02-17),
4. 4476563 - Semiconductor laser having at least two radiation beams, and method of (1984-10-09),
5. 4295152 - Optical coupler with a housing permitting adjustment of the distance (1981-10-13),

Title: Lodewijk J Van Ruyven: Innovator in Radiation Technology

Introduction

Lodewijk J Van Ruyven is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of radiation technology, holding a total of 5 patents. His work primarily focuses on devices that enhance the efficiency and functionality of radiation coupling and scanning technologies.

Latest Patents

Among his latest patents is a radiation coupling device. This device comprises at least three radiation guides, with the first radiation guide divided at one end into at least two further radiation guides. The invention features a semiconductor layer structure that includes at least two radiation guiding layers, each containing a further radiation guide. These layers are optically separated by a passive layer that exhibits a strip-shaped reduction in thickness or an interruption, allowing the radiation guiding layers to operate within each other's amplification profile. Another significant patent is for a bar code reader, which includes a semiconductor laser diode. In this design, one end face of the laser diode is optically coupled to an optical fiber, while the other end face is connected to a detector. The bar code is scanned at the free end of the optical fiber, and the information is read by the semiconductor laser diode through optical feedback.

Career Highlights

Lodewijk J Van Ruyven is currently associated with U.S. Philips Corporation, a leading company in technology and innovation. His work at Philips has allowed him to develop cutting-edge technologies that have practical applications in various industries.

Collaborations

Throughout his career, Lodewijk has collaborated with notable colleagues, including Giok D Khoe and Hendrikus G Kock. These collaborations have contributed to the advancement of technology in their respective fields.

Conclusion

Lodewijk J Van Ruyven is a distinguished inventor whose work in radiation technology has led to several innovative patents. His contributions continue to impact the industry positively, showcasing the importance of innovation in technology.

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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