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For the Inventor, By the Inventor

Auburn, CA, United States of America

Dennis G Fischer

This inventor holds 10 USPTO granted patents. Top assignees: Coherent, Inc., Coherent Optics Europe Limited. Active years: 1983-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dennis G Fischer. Retrieved from https://idiyas.com/inventor/dennis-g-fischer

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 6

Forward Citations = 127(Granted Patents)


Location History:

  • Mountain View, CA (US) (1983)
  • Auburn, CA (US) (1988 - 2005)

Company Filing History:

goldMedal9 out of 544 
 
Coherent, Inc.
 patents
silverMedal1 out of 1 
 
Coherent Optics Europe Limited
 patent

Years Active: 1983-2005

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10 patents (USPTO):Explore Patents
1. 6859483 - Induced absorption filter (IAF) (2005-02-22),
2. 5966240 - Laser blocking filter with neutral transmission color (1999-10-12),
3. 5394501 - Optical coating for reflecting visible and longer wavelength radiation (1995-02-28),
4. 5341238 - Dichroic optical filter (1994-08-23),
5. 5333090 - Optical coating for reflecting visible and longer wavelength radiation (1994-07-26),
6. 5296961 - Dichroic optical filter (1994-03-22),
7. 5226054 - Cavity mirror for suppressing high gain laser wavelengths (1993-07-06),
8. 5151917 - Laser resonators employing diffractive optical elements (1992-09-29),
9. 4746202 - Polarization preserving reflector and method (1988-05-24),
10. 4379622 - Broad band phase shift system (1983-04-12),

Title: The Innovative Contributions of Dennis G Fischer

Introduction

Dennis G Fischer is a notable inventor based in Auburn, CA (US), recognized for his significant contributions to optical filter technology. With a total of 10 patents to his name, Fischer has made strides in the field of photonics and laser technology.

Latest Patents

Fischer's latest patents include the Induced Absorption Filter (IAF), which is an optical filter that employs a multi-layer stack of alternating dielectric layers with varying refractive indices. This innovative design achieves a narrow overall absorption bandwidth while maintaining high reflectance on either side. Additionally, he has developed a tunable optical filter variant that utilizes a dielectric stack and spacer coating of spatially varying thickness. This allows for different wavelengths to be absorbed at various positions across an absorbent layer or substrate. Another notable invention is the laser blocking filter with neutral transmission color, which effectively blocks laser radiation in the visible spectrum while ensuring maximum photopic transmission of other wavelengths.

Career Highlights

Throughout his career, Dennis G Fischer has worked with prominent companies such as Coherent, Inc. and Coherent Optics Europe Limited. His work has significantly impacted the development of advanced optical technologies.

Collaborations

Fischer has collaborated with esteemed colleagues, including David Trost and Philip Baumeister, contributing to various projects that enhance the field of optics and laser technology.

Conclusion

Dennis G Fischer's innovative work in optical filters and laser technology showcases his expertise and dedication to advancing the field. His contributions continue to influence the industry and inspire future innovations.

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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