Company Filing History:

15 out of 1,473

Agfa-gevaert Ag

patents

1 out of 21

Agfa-gevaert Aktiengesellshcaft

Years Active: 1976-1999

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17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5888709 - Photographic recording material (1999-03-30),

2. 5776667 - Color photographic recording material having a yellow filter layer which (1998-07-07),

3. 5665532 - Black and white paper with variable gradation (1997-09-09),

4. 4897341 - Color photographic recording material containing a dir-coupler (1990-01-30),

5. 4845024 - Hardeners for proteins, a binder layer hardened therewith and a (1989-07-04),

6. 4840890 - Hardened proteinic binder layer (1989-06-20),

7. 4840880 - Color photographic recording material containing a yellow DIR coupler (1989-06-20),

8. 4810627 - Photographic recording material (1989-03-07),

9. 4804623 - Photographic recording material, a process for the production of (1989-02-14),

10. 4749643 - Photographic recording element containing a UV absorbent and a silver (1988-06-07),

11. 4579816 - Yellow DIR coupler with 5-furyl(1,2,4-triazole) coupling off group (1986-04-01),

12. 4366221 - Photographic recording material and new merocyanines (1982-12-28),

13. 4276373 - Photosensitive photographic material containing a light-absorbing dye (1981-06-30),

14. 4229526 - Light-sensitive photographic recording material (1980-10-21),

15. 4106027 - Ink for the ink jet process (1978-08-08),

Title: The Innovative Contributions of Hans Ohlschlager

Introduction

Hans Ohlschlager is a notable inventor based in Bergisch Gladbach, Germany. He has made significant contributions to the field of photographic technology, holding a total of 17 patents. His work has had a lasting impact on the industry, particularly in the development of photographic recording materials.

Latest Patents

Among his latest patents, Ohlschlager has developed innovative photographic recording materials that utilize Oxonol dyes. These dyes are characterized by the formula I, where R1 and R2 represent optionally substituted furyl or thienyl groups. Additionally, he has created color photographic recording materials that include a yellow filter layer, which comprises at least one dye from specific formulae I and II, where R1, R3, and R5 can be alkyl, cycloalkyl, or aryl.

Career Highlights

Throughout his career, Hans Ohlschlager has worked with prominent companies in the photographic industry, including Agfa-Gevaert AG and Agfa-Gevaert Aktiengesellschaft. His expertise and innovative spirit have contributed to advancements in photographic technology.

Collaborations

Ohlschlager has collaborated with several notable individuals in his field, including Heinrich Odenwalder and Hans Langen. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hans Ohlschlager's contributions to photographic technology through his numerous patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence the field and inspire future innovations.

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