Willy Joseph Vanassche

This inventor holds 15 USPTO granted patents, primarily in Silver Halide Emulsions. Top assignees: Agfa Gevaert Nv, Afga-Gevaert Nv. Active years: 1976-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Willy Joseph Vanassche. Retrieved from https://idiyas.com/inventor/willy-joseph-vanassche

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

Calculating rank

USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 4

Forward Citations = 63(Granted Patents)

Location History:

Aartselaar, BE (1976 - 1978)
Kontich, BE (1976 - 1981)

Company Filing History:

Years Active: 1976-1981

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Areas of Expertise:

Silver Halide

Emulsions

Fogged Grains

Photodevelopable

Reversal Processing

Direct-Positive

Light-Absorbing Dyes

Super-Sensitized

Developers

Lippmann-Emulsions

Low Fogging

Monodispersed

15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4287296 - Direct-positive emulsion containing fogged, silver halide grains of (1981-09-01),

2. 4148647 - Reversal processing of exposed Lippman-emulsions (1979-04-10),

3. 4108661 - Lippmann-emulsions and reversal processing thereof (1978-08-22),

4. 4092168 - Light-absorbing dyes for silver halide material (1978-05-30),

5. 4082554 - Direct-positive silver halide emulsions (1978-04-04),

6. 4081281 - Developing low fogged, direct-positive silver halide emulsion with an (1978-03-28),

7. 4059450 - Direct positive silver halide elements (1977-11-22),

8. 4053315 - Photodevelopable silver halide material (1977-10-11),

9. 4045228 - Direct positive emulsions containing fogged, monodispersed silver halide (1977-08-30),

10. 4026708 - Direct-positive silver halide emulsions having incorporated developers (1977-05-31),

11. 4023972 - Method of preparing a blend of fogged, direct-positive silver halide (1977-05-17),

12. 4008089 - Direct-positive silver halide emulsion reduction and gold fogged in (1977-02-15),

13. 3980481 - Direct-positive super-sensitized silver halide emulsions (1976-09-14),

14. 3963493 - Direct-positive silver halide emulsion fogged to low level and the use (1976-06-15),

15. 3957518 - Direct-positive silver halide emulsions (1976-05-18),

Title: The Innovative Journey of Willy Joseph Vanassche

Introduction

Willy Joseph Vanassche is a notable inventor based in Kontich, Belgium, with a remarkable portfolio of 15 patents. His contributions primarily focus on the field of photography, particularly in the development of innovative silver halide emulsions and techniques for image processing.

Latest Patents

Vanassche's latest patents include significant advancements in direct-positive emulsions containing fogged silver halide grains. These emulsions are designed to enhance sensitivity while reducing gradation, making them well-suited for continuous tone reproduction. Additionally, he has developed a method for creating reversal images in Lippmann-emulsions. This process involves a unique two-stage development approach, leading to the formation of positive images from original negatives by bleaching and converting residual silver halide.

Career Highlights

Throughout his career, Willy Joseph Vanassche has been associated with prominent companies such as Agfa Gevaert NV, where he honed his skills in photographic technologies. His extensive work in the industry has led to significant advancements in photographic emulsions and their processing techniques.

Collaborations

In his journey, Vanassche has collaborated with notable professionals including Herman Alberik Pattyn and Sieghart Klotzer. These collaborations have likely contributed to the innovative outcomes seen in his patents and the overall advancement of photographic science.

Conclusion

Willy Joseph Vanassche's contributions to the world of photography through his inventive work on silver halide emulsions and image processing methods have left a lasting impact. With a total of 15 patents to his name and a successful career in esteemed companies, he continues to be an influential figure in the field of innovations related to imaging technologies.

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]