Location History:
- Hood, VA (US) (1989)
- Madison, VA (US) (1989 - 1992)
- Graves Mill, VA (US) (2003)
Company Filing History:
2 out of 51,937 
2 out of 48 
Years Active: 1989-2003
Title: Innovations of Joseph J Cieri
Introduction
Joseph J Cieri is a notable inventor based in Graves Mill, Virginia, who has made significant contributions to the field of electrical engineering. He holds a total of four patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on input/output (I/O) systems, which are crucial for modern electronic devices.
Latest Patents
Cieri's latest patents include "Methods and apparatus for full I/O functionality and blocking of backdrive current." This invention describes an I/O port designed for electrical interconnection with multiple similar ports. It features an input read circuit, an output drive circuit, and a control circuit that manages the port's mode by disconnecting the output drive circuit when necessary. Additionally, it includes a back drive current protection circuit that prevents unwanted currents from affecting the system during powered down states while maintaining full functionality when powered up.
Another significant patent is the "Programmable controller input/output communications system." This invention enhances I/O systems in programmable controllers by providing a method and circuitry for exchanging control and diagnostic information between the control unit and various I/O points. The control unit generates control signals in the form of sequential pulse frames, allowing for efficient communication and diagnostics.
Career Highlights
Throughout his career, Joseph J Cieri has worked with prominent companies such as General Electric Company and GE Fanuc Automation North America, Inc. His experience in these organizations has contributed to his development as an inventor and has allowed him to apply his innovative ideas in practical settings.
Collaborations
Cieri has collaborated with notable individuals in the field, including Kenneth M Holet and Ronald E Gareis. These partnerships have likely fostered an environment of creativity and innovation, leading to the development of his patents.
Conclusion
Joseph J Cieri's contributions to the field of electrical engineering through his patents demonstrate his commitment to innovation and problem-solving. His work continues to influence the design and functionality of modern I/O systems.