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For the Inventor, By the Inventor

Kingsport, TN, United States of America

Ralph H Bradley, Jr

USPTO Granted Patents = 13

Average Co-Inventor Count = 2.0

ph-index = 12

Forward Citations = 484(Granted Patents)


Location History:

  • Knoxville, TN (US) (1989)
  • Kingsport, TN (US) (1986 - 1997)

Company Filing History:

goldMedal7 out of 950 
 
North American Philips Corporation
 patents
silverMedal3 out of 93 
 
North American Philips Consumer Electronics Corp.
 patents
bronzeMedal2 out of 14,087 
 
U.S. Philips Corporation
 patents
4. 1 out of 838 
 
Philips Electronics North America Corporation
 patents
5. 1 out of 5 
 
Nap Consumer Electronics Corp.
 patents
where one patent can have more than one assignee

Years Active: 1986-1997

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13 patents (USPTO):Explore Patents
1. 5608467 - Single panel color projection video display (1997-03-04),
2. 5532763 - Single panel color projection video display (1996-07-02),
3. 5168351 - Short focal length video color projector employing dichroic mirror block (1992-12-01),
4. 5084807 - Illumination system for LCD projection television (1992-01-28),
5. 5076661 - Rear projection screen (1991-12-31),
6. 4964695 - Lenticular arrays for front projection screens and contrast improving (1990-10-23),
7. 4928182 - Dual aspect ratio display with cyclicly moving raster area to prevent (1990-05-22),
8. 4864390 - Display system with equal path lengths (1989-09-05),
9. 4773731 - One-piece projection screen (1988-09-27),
10. 4767186 - Front projection screen with rear light concentrating lens array (1988-08-30),
11. 4701020 - Rear projection screen with improved luminance uniformity (1987-10-20),
12. 4679069 - Color picture projection system with a wavelength-selective reflector (1987-07-07),
13. 4573764 - Rear projection screen (1986-03-04),

Title: The Innovative Contributions of Ralph H. Bradley, Jr.

Introduction: Ralph H. Bradley, Jr. is a prominent inventor based in Kingsport, Tennessee, who has made substantial contributions to the field of color projection technology. With a total of 13 patents to his name, Bradley's innovations are notable for their technical complexity and practical application.

Latest Patents: Among his latest inventions is the Single Panel Color Projection Video Display. This system employs a unique mechanism that utilizes only a single light valve. The innovation involves separating a white light source into red, green, and blue bands which are sequentially scanned across a light valve, such as a transmission LCD panel. The display electronics address each row of panels just before each RGB color passes over it. This allows the system to project images with an appearance of simultaneous full color, enabling a vivid and dynamic viewing experience.

Career Highlights: Throughout his career, Ralph H. Bradley, Jr. has worked with notable companies such as North American Philips Corporation and North American Philips Consumer Electronics Corp. His extensive experience in these institutions has provided him with a robust platform to develop his innovative concepts into patentable inventions.

Collaborations: In his professional journey, Bradley has worked alongside esteemed colleagues like William F. Guerinot and Jill F. Goldenberg. Their shared expertise and collaborative efforts have contributed to the development of pioneering technologies in their field.

Conclusion: Ralph H. Bradley, Jr. stands out as a key figure in the realm of inventions related to color projection systems. His work not only enhances visual technology but also exemplifies the spirit of innovation that drives advancements in electronics. Through his patents, Bradley continues to influence the industry and inspire future inventors.

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