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For the Inventor, By the Inventor

Bear, DE, United States of America

Lap K Cheng

This inventor holds 13 USPTO granted patents, primarily in Optical Materials. Top assignees: E.i. Dupont De Nemours and Company, Cornell University, Other. Active years: 1991-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Lap K Cheng. Retrieved from https://idiyas.com/inventor/lap-k-cheng

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

Calculating rank
USPTO Granted Patents = 13

% Patents Active = 92.3

Average Co-Inventor Count = 1.9

ph-index = 6

Forward Citations = 155(Granted Patents)


Location History:

  • Newark, DE (US) (1991)
  • Bear, DE (US) (1991 - 2005)

Company Filing History:

goldMedal8 out of 16,339 
 
E.i. Dupont De Nemours and Company
 patents
silverMedal4 out of 2,954 
 
Cornell University
 patents
bronzeMedal1 out of 834,659 
Other
 patents

Years Active: 1991-2005

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Areas of Expertise:
Photobleachable Compounds
Tunable Optical Oscillator
Single Crystals
Doped Crystalline Materials
KTA Nonlinear Crystals
Birefringence
Hydrothermal Process
Femtosecond Laser
13 patents (USPTO):Explore Patents
1. 6864039 - Photobleachable compounds for use in flexographic printing plates (2005-03-08),
2. 5579152 - Tunable optical parametric oscillator (1996-11-26),
3. 5500145 - Hydrothermal aqueous mineralizer for growing optical-quality single (1996-03-19),
4. 5480569 - Doped crystalline titanyl arsenates and preparation thereof (1996-01-02),
5. 5371752 - Optical parametric oscillation using KTA nonlinear crystals (1994-12-06),
6. 5334365 - Single cesium titanyl arsenate-type crystals, and their preparation (1994-08-02),
7. 5326423 - Doped crystalline titanyl arsenates and preparation thereof (1994-07-05),
8. 5311352 - Increasing the birefringence of KTP and its isomorphs for type II phase (1994-05-10),
9. 5264073 - Hydrothermal process for growing optical-quality single crystals and (1993-11-23),
10. 5053641 - Tunable optical parametric oscillator (1991-10-01),
11. 5039187 - M.sub.1-x N.sub.x TiAs.sub.1-a P.sub.a O.sub.5 waveguides grown by (1991-08-13),
12. 5034951 - Femtosecond ultraviolet laser using ultra-thin beta barium borate (1991-07-23),
13. 5033057 - Pump steering mirror cavity (1991-07-16),

Title: Innovations and Contributions of Inventor Lap K Cheng

Introduction

Lap K Cheng is a notable inventor based in Bear, Delaware, with a significant portfolio of 13 patents. His work primarily focuses on advancements in printing technologies and optical devices. Cheng's innovative contributions have had a substantial impact on the fields of flexographic printing and optical parametric oscillators.

Latest Patents

One of Cheng's latest patents is for photobleachable compounds used in flexographic printing plates. This invention describes a photosensitive printing element that includes a support and a photopolymerizable layer. The layer comprises a photopolymerizable composition that contains at least one elastomeric binder, one monomer, an initiator sensitive to actinic radiation, and a photobleachable compound. These compounds enhance the resolution of images produced by reducing the effects of scattered light. Another significant patent is for a tunable optical parametric oscillator. This device features a cavity with a pumping section containing a nonlinear crystal, which is aligned for optimal performance. The tunable laser produces output beams across a range of wavelengths, showcasing Cheng's expertise in optical technologies.

Career Highlights

Throughout his career, Lap K Cheng has worked with prominent organizations, including E.I. DuPont de Nemours and Company and Cornell Research Foundation Inc. His experience in these institutions has allowed him to develop and refine his innovative ideas, contributing to advancements in his field.

Collaborations

Cheng has collaborated with notable colleagues, including Chung L Tang and Albert A Ballman. These partnerships have fostered a collaborative environment that has led to significant advancements in their respective areas of expertise.

Conclusion

Lap K Cheng's contributions to innovation in printing and optical technologies are noteworthy. His patents reflect a commitment to enhancing the functionality and efficiency of these technologies. Cheng's work continues to influence the industry and inspire future innovations.

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]
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