Company Filing History:

10 out of 16,338

E.i. Dupont De Nemours and Company

patents

1 out of 27

E. I. Du Pont De Nemours

patents

Years Active: 1976-1995

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5393561 - Segmented waveguides having selected bragg reflection characteristics (1995-02-28),

2. 5311352 - Increasing the birefringence of KTP and its isomorphs for type II phase (1994-05-10),

3. 5266092 - Processes for preparation of ion exchanged crystalline waveguides (1993-11-30),

4. 5243676 - Segmented waveguides having selected Bragg reflection characteristics (1993-09-07),

5. 5157754 - Wavelength conversion by quasi phase matching and the manufacture and (1992-10-20),

6. 5146533 - Ion exchanged crystalline waveguides and processes for their preparation (1992-09-08),

7. 5084206 - Doped crystalline compositions and a method for preparation thereof (1992-01-28),

8. 5028107 - Optical articles for wavelength conversion and their manufacture and use (1991-07-02),

9. 4766954 - Process for producing an optical waveguide (1988-08-30),

10. 4740265 - Process for producing an optical waveguide and the product therefrom (1988-04-26),

11. 3949323 - Crystals of (K, Rb, NH.sub.4)TiO(P, As)O.sub.4 and their use in (1976-04-06),

Title: Innovations of John D Bierlein

Introduction

John D Bierlein is a notable inventor based in Wilmington, DE (US). He holds a total of 11 patents that showcase his contributions to the field of optical technologies and wavelength conversion. His work has significantly advanced the understanding and application of segmented waveguides.

Latest Patents

Among his latest patents, Bierlein has developed segmented waveguides with selected Bragg reflection characteristics. These waveguides are designed for wavelength conversion, utilizing alternating sections of crystalline substrates. His innovations include a process for preparing channel waveguides that enhance wavelength conversion efficiency. Additionally, he has worked on increasing the birefringence of KTP and its isomorphs for type II phase matching, which involves employing doped crystals to achieve superior optical properties.

Career Highlights

Bierlein has had a distinguished career, working with prominent companies such as E.I. DuPont De Nemours and Company. His experience in these organizations has allowed him to refine his expertise in optical materials and devices.

Collaborations

Throughout his career, Bierlein has collaborated with notable colleagues, including August Ferretti and Thurman E Gier. These partnerships have contributed to the successful development of his innovative technologies.

Conclusion

John D Bierlein's work in the field of optical technologies has led to significant advancements in wavelength conversion and waveguide design. His contributions continue to influence the industry and inspire future innovations.

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