Siegfried Janz

This inventor holds 20 USPTO granted patents and 2 published patent applications, plus 7 CIPO patents, primarily in Optical Waveguides. Top assignees: National Research Council of Canada, Enablence Inc., Carleton University. Active years: 1994-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Siegfried Janz. Retrieved from https://idiyas.com/inventor/siegfried-janz

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

Calculating rank

USPTO Granted Patents = 20 (Patent Applications = 2)

% Patents Active = 70.0

CIPO Patents = 7 (Patent Applications = 9)

Average Co-Inventor Count = 4.1

ph-index = 8

Forward Citations = 222(Granted Patents)

Location History:

Gloucester, CA (2001 - 2008)
Ottawa, CA (1994 - 2023)

Company Filing History:

18 out of 1,039

National Research Council of Canada

where one patent can have more than one assignee

Years Active: 1994-2026

Loading Chart...

Areas of Expertise:

Waveguide Antenna

Fibre Optic Filter

Gas Correlation Sensor

Silicon Photonic Wire

Molecular Sensor

Echelle Gratings

Fourier Transform Spectrometer

Photodetectors

Mode Transformation

Optical Interconnects

Strain-Induced Growth

Sum-Frequency Mixing

20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12663589 - Waveguide antenna (2026-06-23),

2. 12474206 - Fibre optic filter remote gas correlation sensor (2025-11-18),

3. 12449598 - Waveguide antenna device (2025-10-21),

4. 11658462 - Integrated filter remote gas correlation sensor (2023-05-23),

5. 8796012 - Grating-based evanescent field molecular sensor using a thin silicon waveguide layer (2014-08-05),

6. 8503839 - Composite subwavelength-structured waveguide in optical systems (2013-08-06),

7. 8351043 - Planar waveguide wavelength dispersive devices with multiple waveguide input aperture (2013-01-08),

8. 7778499 - Silicon photonic wire waveguide biosensor (2010-08-17),

9. 7680371 - Interface device for performing mode transformation in optical waveguides (2010-03-16),

10. 7376308 - Optical off-chip interconnects in multichannel planar waveguide devices (2008-05-20),

11. 7376305 - Echelle gratings with low Polarization Dependent Loss (PDL) using metal coating on the reflecting facets only (2008-05-20),

12. 7317535 - Wavelength dispersive fourier transform spectrometer (2008-01-08),

13. 7272276 - Optical performance monitor (2007-09-18),

14. 7194177 - Stress-induced control of polarization dependent properties in photonic devices (2007-03-20),

15. 7132656 - High speed and high efficiency Si-based photodetectors using waveguides formed with silicide for near IR applications (2006-11-07),

Title: **Siegfried Janz: A Pioneer in Optical Sensor Technology**

Introduction

Siegfried Janz is a renowned inventor based in Ottawa, Canada, who has made significant contributions to the field of optical sensors. With an impressive portfolio of 17 patents, his work has garnered recognition for its innovative approaches to gas detection and molecular sensing.

Latest Patents

Among his latest inventions, Janz developed the **Integrated Filter Remote Gas Correlation Sensor**. This advanced optical sensor enables the detection and identification of one or more remote gases by utilizing a transmission filter that matches specific absorption features of the gas. The unique design incorporates a single photodetection element and features an integrated optical component characterized by a tunable transmission spectrum, allowing for precise measurement of target gases.

Additionally, Janz has patented a technique known as the **Grating-Based Evanescent Field Molecular Sensor Using a Thin Silicon Waveguide Layer**. This sensor achieves high sensitivity by employing a detection method that couples a polarized beam to a single mode of a waveguide while enabling specular reflection. The use of a silicon on insulator (SOI) wafer with a carefully chosen waveguide thickness enhances interaction with the evanescent field for improved sensing capabilities.

Career Highlights

Throughout his career, Siegfried Janz has worked with notable organizations such as the National Research Council of Canada and Enablence Inc. His contributions in these positions have propelled advancements in optical sensor technology, making significant impacts on both research and practical applications.

Collaborations

Janz has collaborated with esteemed colleagues, including Dan-Xia Xu and Pavel Cheben. These partnerships have fostered innovation and have been instrumental in the development of his groundbreaking technologies.

Conclusion

Siegfried Janz stands out as a visionary inventor in the realm of optical sensor technology. His dedication to research and innovation has led to the development of cutting-edge technologies that not only contribute to scientific advancement but also have practical implications in detecting gases and molecules effectively. His work continues to inspire future innovations in the field.

Profile summary based on public USPTO records.