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For the Inventor, By the Inventor

Baltimore, MD, United States of America

Marvin Cohn

USPTO Granted Patents = 15

Average Co-Inventor Count = 1.4

ph-index = 12

Forward Citations = 269(Granted Patents)


Company Filing History:

goldMedal14 out of 8,033 
 
Westinghouse Electric Corporation
 patents
silverMedal1 out of 4,997 
 
United States of America As Represented by the Secretary of the Air Force
 patents

Years Active: 1977-1996

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15 patents (USPTO):Explore Patents
1. 5517687 - Subharmonic image rejection and image enhancement mixer (1996-05-14),
2. 5475349 - Frequency multipliers using diode arrays (1995-12-12),
3. 5406237 - Wideband frequency multiplier having a silicon carbide varactor for use (1995-04-11),
4. 5387916 - Automotive navigation system and method (1995-02-07),
5. 5325129 - Millimeter wavelength energy detector pixel having intermediate (1994-06-28),
6. 5254997 - Retrodirective interrogation responsive system (1993-10-19),
7. 5070304 - Distributed combiner power amplifier and method (1991-12-03),
8. 4951060 - Dual frequency transmit-receive module for an active aperture radar (1990-08-21),
9. 4612520 - Wideband 180-degree phase shifter bit (1986-09-16),
10. 4234854 - Amplifier with radial line divider/combiner (1980-11-18),
11. 4099228 - Harmonic mixing with an anti-parallel diode pair (1978-07-04),
12. 4097814 - Push-pull power amplifier (1978-06-27),
13. 4083004 - Expendable repeater employing harmonic mixing (1978-04-04),
14. 4081679 - Dual channel correlation radiometer (1978-03-28),
15. 4056784 - Suppression of parametric oscillations in IMPATT amplifiers and (1977-11-01),

Title: The Innovations of Marvin Cohn

Introduction

Marvin Cohn is a notable inventor based in Baltimore, MD, with a remarkable portfolio of 15 patents. His work primarily focuses on advancements in signal processing and frequency multiplication, contributing significantly to the fields of microwave and millimeter-wave systems.

Latest Patents

One of Cohn's latest patents is the "Subharmonic Image Rejection and Image Enhancement Mixer." This invention describes a mixer designed for millimeter wavelength signals, utilizing a low conversion loss technique. The mixer employs a local oscillator frequency from an external source, which is processed through a phase shifter to enhance signal quality. The design effectively separates and terminates the image component of the intermediate frequency, thereby reducing conversion loss.

Another significant patent is related to "Frequency Multipliers Using Diode Arrays." This invention features a frequency multiplier that incorporates arrays of Schottky barrier diodes. These arrays can be configured for various applications, providing selectable impedance levels and breakdown voltages, making them particularly useful in high-power microwave and millimeter-wave systems.

Career Highlights

Throughout his career, Marvin Cohn has worked with prominent organizations, including Westinghouse Electric Corporation and the United States of America as represented by the Secretary of the Air Force. His contributions to these institutions have been instrumental in advancing technology in signal processing.

Collaborations

Cohn has collaborated with notable colleagues such as James E. Degenford and Edward C. Niehenke. Their combined expertise has fostered innovation and development in their respective fields.

Conclusion

Marvin Cohn's contributions to the field of signal processing and frequency multiplication have established him as a significant figure in innovation. His patents reflect a deep understanding of complex technologies and a commitment to advancing the industry.

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