logo

For the Inventor, By the Inventor

Billerica, MA, United States of America

William C Schwarzel

This inventor holds 14 USPTO granted patents. Top assignees: Polaroid Corporation, Polaroid Corporation, Patent Dept.. Active years: 1982-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: William C Schwarzel. Retrieved from https://idiyas.com/inventor/william-c-schwarzel

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

USPTO Granted Patents = 14

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 6

Forward Citations = 115(Granted Patents)


Company Filing History:

goldMedal13 out of 2,176 
 
Polaroid Corporation
 patents
silverMedal1 out of 15 
 
Polaroid Corporation, Patent Dept.
 patents

Years Active: 1982-2001

Loading Chart...
14 patents (USPTO):Explore Patents
1. 6258505 - Heat and radiation-sensitive imaging medium, and processes for use thereof (2001-07-10),
2. 6054246 - Heat and radiation-sensitive imaging medium, and processes for use (2000-04-25),
3. 5853958 - Lithographic plate with disperse particulate rubber additive (1998-12-29),
4. 5616449 - Lithographic printing plates with dispersed rubber additives (1997-04-01),
5. 5599650 - Photoreaction quenchers in on-press developable lithographic printing (1997-02-04),
6. 5561029 - Low-volatility, substituted 2-phenyl-4,6-bis (halomethyl)-1,3,5-triazine (1996-10-01),
7. 5556924 - Synthesis of photoreactive polymeric binders (1996-09-17),
8. 5514522 - Synthesis of photoreactive polymeric binders (1996-05-07),
9. 5206208 - Stabilization of thermal images (1993-04-27),
10. 4946964 - Photographic compounds (1990-08-07),
11. 4743533 - Photographic system utilizing a compound capable of providing controlled (1988-05-10),
12. 4547451 - Hydrolyzable diffusion control layers in photographic products (1985-10-15),
13. 4391895 - Diffusion control layers for diffusion transfer photographic film (1983-07-05),
14. 4352871 - Polymeric hydroxamic acid polyvalent metal salt interlayer for (1982-10-05),

Title: The Innovative Contributions of William C Schwarzel

Introduction

William C Schwarzel is a notable inventor based in Billerica, MA (US), recognized for his significant contributions to imaging technology. With a total of 14 patents to his name, Schwarzel has made a lasting impact in the field of heat and radiation-sensitive imaging mediums.

Latest Patents

Among his latest patents is the invention of a heat and radiation-sensitive imaging medium. This innovative imaging medium comprises a substrate carrying a color-change layer. The color-change layer consists of two layers or phases containing two color-forming reagents that react upon heating, resulting in a change in color. Notably, this layer can be deactivated by exposure to actinic radiation, preventing further thermal color changes. The design allows for the color-change layer to be detachable from the substrate at lower temperatures, enabling precise control over the imaging process. The medium can be imaged through various methods, including imagewise heating followed by blanket exposure to deactivating radiation.

Career Highlights

Schwarzel has had a distinguished career, working with renowned companies such as Polaroid Corporation and its Patent Department. His work has been instrumental in advancing imaging technologies, particularly in the realm of thermal printing and color-change mediums.

Collaborations

Throughout his career, Schwarzel has collaborated with notable colleagues, including Rong-Chang Liang and Lloyd D Taylor. These partnerships have contributed to the development of innovative technologies and have furthered the field of imaging.

Conclusion

William C Schwarzel's contributions to imaging technology through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative work continues to influence advancements in imaging mediums and thermal printing processes.

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]
Loading…