Location History:
- Lincoln,, NE (US) (1985)
- Lincoln, NE (US) (1986 - 1992)
Company Filing History:
Years Active: 1985-1992
Title: Innovations of John N Jones
Introduction
John N Jones is a notable inventor based in Lincoln, NE (US). He has made significant contributions to the field of chromatography, holding a total of 10 patents. His work focuses on improving the accuracy and efficiency of chromatographic systems.
Latest Patents
One of his latest patents is a chromatographic system designed to prevent solvents from forming a gradient that mixes at the wrong place. This invention ensures accurate composition at the start of the gradient, despite variations in solvent pressure. The system includes a microliquid or supercritical fluid chromatograph that features a combined mixer and pressure detector. It detects equal pressures of the two solvents in the gradient through the displacement of a ferromagnetic poppet in the mixing chamber. The poppet acts as a stop for the final solvent until the pressures are substantially equal. Its movement is detected by a circuit related to a linear variable differential transformer. The signal energizes a circuit that drives one of the sensing coils to move the poppet during the gradient, facilitating proper mixing.
Another of his recent patents is a chromatographic system with a mixer, which shares similar functionalities and objectives as the previous invention. This innovation also aims to prevent improper mixing of solvents and to maintain accurate gradient composition.
Career Highlights
John N Jones has had a successful career at Isco, Inc., where he has developed and refined his innovative chromatographic technologies. His work has significantly impacted the field, enhancing the capabilities of chromatographic systems.
Collaborations
Throughout his career, John has collaborated with notable colleagues, including Robert W Allington and Abolghassem Y Tehrani. These partnerships have contributed to the advancement of his inventions and the overall progress in chromatography.
Conclusion
John N Jones is a distinguished inventor whose work in chromatography has led to significant advancements in the field. His innovative patents reflect his commitment to improving the accuracy and efficiency of chromatographic systems.