Location History:
- San Francisco, CA (US) (1976)
- Mount View, CA (US) (1976)
- Mountain View, CA (US) (1977)
Company Filing History:
2 out of 9,639 
1 out of 832,912 Years Active: 1976-1977
Title: The Innovative Contributions of Alexander D Walker
Introduction
Alexander D Walker is a notable inventor based in San Francisco, CA. He has made significant contributions to the field of technology, particularly in the development of computer terminals and calculators. With a total of three patents to his name, Walker's innovations have had a lasting impact on the industry.
Latest Patents
One of Walker's latest patents is for a computer terminal that includes a printer. This terminal features a heat-sensitive sheet across which a thermal head can move, allowing for character printing controlled by a keyboard. Additionally, it generates a coded output for transmission to and from a computer at a central station. Another notable patent is for a general-purpose calculator that is battery-powered and hand-held. This calculator employs MOS/LSI circuits to perform arithmetic and financial calculations. It includes a keyboard with a prefix key to double the functions of selected keys, and it features a 15-digit, seven-segment light-emitting diode (LED) display for output.
Career Highlights
Throughout his career, Walker has worked with prominent companies, including Hewlett-Packard Company. His work has contributed to advancements in computing and calculation technologies, showcasing his expertise and innovative spirit.
Collaborations
Walker has collaborated with notable individuals in the field, including France Rode and William L Crowley, Jr. These partnerships have further enhanced his contributions to technology and innovation.
Conclusion
Alexander D Walker's inventive spirit and contributions to technology have made a significant impact in his field. His patents reflect a commitment to innovation that continues to influence the industry today.