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For the Inventor, By the Inventor

Cupertino, CA, United States of America

Helmut Bacher

This inventor holds 7 USPTO granted patents. Top assignees: Litton Industries, Inc., Other. Active years: 1978-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Helmut Bacher. Retrieved from https://idiyas.com/inventor/helmut-bacher-kw6et5k8

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

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 4

Forward Citations = 41(Granted Patents)


Location History:

  • Gaithersburg, MD (US) (1978)
  • Santa Clara, CA (US) (1979)
  • Cupertino, CA (US) (1986 - 1991)
  • Brookings, OR (US) (1996)

Company Filing History:

goldMedal1 out of 8 
 
Litton Industries, Inc.
 patents
silverMedal6 out of 834,570 
Other
 patents

Years Active: 1978-1996

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7 patents (USPTO):Explore Patents
1. 5545949 - Coaxial transmissioin line input transformer having externally variable (1996-08-13),
2. 5506513 - Microwave circuit test fixture (1996-04-09),
3. 4981445 - Inexpensive coaxial microwave connector with low loss and reflection, (1991-01-01),
4. 4570133 - Microwave attenuator (1986-02-11),
5. 4153885 - Microwave equalizer with coaxial cable resonant stubs (1979-05-08),
6. 4117425 - Microwave step attenuator (1978-09-26),
7. 4105960 - Broad-band continuously variable attenuator (1978-08-08),

Title: **The Innovative Mind of Helmut Bacher: Transforming RF Technology**

Introduction

Helmut Bacher, an accomplished inventor based in Cupertino, CA, is renowned for his significant contributions to the field of radio frequency (RF) technology. With a portfolio of seven patents, Bacher has demonstrated a commitment to innovation that enhances the efficiency and functionality of electronic communication systems.

Latest Patents

Among his noteworthy inventions, Bacher's recent patents include a coaxial transmission line input transformer with externally variable amplitude and phase control. This innovative transformer allows for continuous adjustment of the RF signal's amplitude and phase, enabling precise modifications without the need to disassemble the transmission line system. The design includes an eccentric inner wall of a second sleeve that adjusts the impedance of the transformer, facilitating a dynamic response in RF transmission. Additionally, Bacher has developed a microwave circuit test fixture for testing two-port microwave integrated circuits (MICs). This fixture enhances testing efficiency by allowing seamless connection and testing of MICs while ensuring a reliable ground path.

Career Highlights

Bacher’s career includes pivotal roles at renowned organizations, including Litton Industries, Inc. His work has been instrumental in advancing technologies that are crucial for modern communication systems. Through his inventive spirit and technical acumen, Bacher has achieved a reputation as a leader in RF innovations.

Collaborations

Throughout his career, Helmut has collaborated with notable individuals, such as his coworker, Egon R. Seitter. These partnerships have fostered a creative environment conducive to groundbreaking advancements in RF technology and beyond.

Conclusion

Helmut Bacher's contributions to the field of RF technology exemplify the power of innovation and collaboration. With his inventive mindset and a series of impactful patents to his name, he continues to influence the industry and inspire future generations of inventors in the ever-evolving landscape of 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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