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For the Inventor, By the Inventor

Prospect Heights, IL, United States of America

Howard G Lange

This inventor holds 12 USPTO granted patents. Top assignees: Zenith Electronics Corporation, Zenith Radio Corporation. Active years: 1976-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Howard G Lange. Retrieved from https://idiyas.com/inventor/howard-g-lange-1o2s2hpy

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

Calculating rank
USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 4

Forward Citations = 72(Granted Patents)


Company Filing History:

goldMedal7 out of 948 
 
Zenith Electronics Corporation
 patents
silverMedal5 out of 476 
 
Zenith Radio Corporation
 patents

Years Active: 1976-1993

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12 patents (USPTO):Explore Patents
1. 5270753 - Optical aperture device for manufacturing color cathode ray tubes (1993-12-14),
2. 5158491 - System of printing standardized cathode ray tube screens (1992-10-27),
3. 5059147 - Method and apparatus for making flat tension mask color cathode ray tubes (1991-10-22),
4. 4998901 - Method and apparatus for making flat tension mask color cathode ray tubes (1991-03-12),
5. 4973280 - Method and apparatus for making flat tension mask color cathode ray tubes (1990-11-27),
6. 4902257 - Methods and apparatus for making flat tension mask color cathode ray (1990-02-20),
7. 4493166 - Ultra precise tool forming apparatus (1985-01-15),
8. 4387959 - Rear projection screen (1983-06-14),
9. 4374609 - Image projection screen with decreased color shift as a function of (1983-02-22),
10. 4077717 - Apparatus for making a color selection mask for a color cathode ray tube (1978-03-07),
11. 3973964 - Method for manufacturing a color cathode ray tube and for making (1976-08-10),
12. 3955980 - Method for making a color selection mask for a color cathode ray tube (1976-05-11),

Title: Howard G. Lange: A Pioneer in Cathode Ray Tube Innovations

Introduction

Howard G. Lange, an innovative inventor based in Prospect Heights, IL, is recognized for his significant contributions to the field of cathode ray tube (CRT) technology. With a remarkable portfolio of 12 patents, Lange's work has fundamentally advanced the manufacturing processes and precision of CRT screens.

Latest Patents

Among his latest inventions is the "Optical Aperture Device for Manufacturing Color Cathode Ray Tubes." This invention features an apertured member designed to be spaced from the light source, incorporating a light-transmitting slot with a parabolic shape. This configuration corrects beam landing misregistration errors often encountered with self-converging yokes used in CRTs.

Another notable patent is the "System of Printing Standardized Cathode Ray Tube Screens." This system introduces a unique method for standardized printing that does not rely on a shadow mask aperture pattern, instead utilizing a photoexposure stencil. By positioning the stencil close to the screening surface during exposure, high-resolution screens compatible with interchangeable shadow masks are produced, addressing variations in panel assemblies.

Career Highlights

Throughout his career, Howard Lange has made significant contributions while working with notable companies, including Zenith Electronics Corporation and Zenith Radio Corporation. His role in these organizations has been instrumental in pushing the boundaries of CRT technology and manufacturing.

Collaborations

Lange collaborated with esteemed professionals in his field, including Robert J. Adler and James R. Fendley. These collaborations have fostered a dynamic environment of innovation and creativity, leading to impactful developments in CRT technology.

Conclusion

Howard G. Lange's innovative spirit and dedication to advancing CRT technology have cemented his legacy as a pioneering inventor. His contributions, marked by multiple patents and significant industry collaborations, continue to influence the field and inspire future innovations in the world of electronics.

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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