This inventor holds 29 USPTO granted patents, primarily in Optical Communication. Top assignees: At&t Bell Laboratories, Lucent Technologies Inc., Bell Telephone Laboratories. Active years: 1976-2003.
Location History:
- Matawan, NJ (US) (1976)
- Holmdel, NJ (US) (1976 - 1984)
- Berkeley Heights, NJ (US) (1987 - 1995)
- Atlanta, GA (US) (1995 - 2003)
Company Filing History:
8 out of 3,345 
8 out of 9,364 
5 out of 2,714 
Years Active: 1976-2003
Areas of Expertise:
Title: Leonard G. Cohen: A Pioneer in Optical Innovations from Berkeley Heights, NJ
Introduction
Leonard G. Cohen, based in Berkeley Heights, NJ, is an accomplished inventor with an impressive portfolio of 29 patents. His contributions to the field of optical communications have paved the way for innovations that enhance bandwidth management and optical routing systems, making a significant impact in the technology sector.
Latest Patents
Among his latest patents are two notable inventions that exemplify his ingenuity. The first is the "Waveguide Grating Router Employing Transmissive Echelle Gratings." This optical router for communication systems comprises a pair of transmissive Echelle gratings with grating surfaces coupled by a waveguide grating. This innovative arrangement allows for enhanced design flexibility by varying dispersive parameters, including the shapes of the Echelle gratings and the path length difference among the waveguides. Moreover, the device eliminates the need for reflective surfaces in the Echelle gratings.
The second patent is on "Multiple Function Bandwidth Management Systems." These bandwidth-management systems for optical networks can be easily assembled by concatenating a series of miniaturized, intelligent bandwidth-management modules (BMMs). Each BMM subdivides a wide available spectrum into narrow band segments, designed to minimize loss and optimize dispersion, gain, and power or gain equalization for specific channels. They include optical connectors and filters, as well as components for directing optical channels through the device while maintaining the integrity of additional connected bandwidth-management modules. The inclusion of a digital control module allows operation in various selectable modes, providing versatility in managing optical networks.
Career Highlights
Throughout his career, Leonard G. Cohen has contributed his expertise to prominent companies such as Lucent Technologies Inc. and AT&T Bell Laboratories. His work at these institutions has been pivotal in developing advanced optical communication technologies, establishing him as a leading figure in his field.
Collaborations
Cohen’s journey is marked by collaboration with brilliant minds, including his coworkers Charles H. Henry and Rudolf F. Kazarinov. These partnerships have fostered a creative environment that contributes to significant breakthroughs in optical technology.
Conclusion
Leonard G. Cohen's work in optical innovations continues to influence the technology landscape significantly. With his numerous patents and collaborative efforts, he has positioned himself as an influential inventor whose contributions will have lasting effects on the future of optical communications.