Company Filing History:
1 out of 5,000 
1 out of 1,246 
Years Active: 1980-1982
Title: Innovations of Kenneth Crabtree
Introduction
Kenneth Crabtree is an accomplished inventor based in Saugus, CA (US). He holds a total of 2 patents that showcase his contributions to interactive graphic display systems and laser technology. His work has significantly impacted the fields of graphic data entry and laser beam sensing.
Latest Patents
One of Kenneth's latest patents is titled "Cursor apparatus for interactive graphic display system." This invention provides a means for automatic centering of a pointing laser beam on a handheld cursor. The graphic display system allows for the display and comparison of full-size overlaid graphical data and projected graphical data on a common display screen. It features a steerable pointing laser that scans the display screen in response to a laser beam deflection circuit. The system includes laser beam position sensing and indicating circuits that accurately measure the laser beam position. The cursor is designed to manually or automatically measure the coordinates of graphical features on the display screen.
Another significant patent is "Method and apparatus for sensing the position of a writing laser beam." This system involves at least two laser beams of unlike frequency that are superimposed on the writing laser beam. The combined laser beams are deflected in a common optical deflection system and then separated from the writing laser beam. The position of the focused beams corresponds to the position of the writing laser beam on the writing media. By sensing the frequency of at least one of the beams diffracted by the grating, the position and movement of the writing laser beam can be determined.
Career Highlights
Throughout his career, Kenneth Crabtree has worked with notable organizations, including the United States of America as represented by the Secretary of the Air Force and The Singer Company. His innovative work has contributed to advancements in laser technology and graphic display systems.
Collaborations
Kenneth has collaborated with several professionals in his field, including Richard H. Burns and Michael R. Smith. Their combined expertise has furthered the development of his inventions.
Conclusion
Kenneth Crabtree's contributions to the fields of interactive graphic display systems and laser technology are noteworthy. His patents reflect a commitment to innovation and advancement in these areas.