Columbia, MD, United States of America

John A Cristion

This inventor holds 3 USPTO granted patents. Top assignee: Johns Hopkins University. Active years: 1994-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John A Cristion. Retrieved from https://idiyas.com/inventor/john-a-cristion

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 3.3

ph-index = 3

Forward Citations = 225(Granted Patents)


Company Filing History:


Years Active: 1994-2011

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3 patents (USPTO):Explore Patents

Title: Innovations of John A Cristion

Introduction

John A Cristion is a notable inventor based in Columbia, MD (US). He has made significant contributions to the field of medical technology, particularly in fetal monitoring systems. With a total of 3 patents to his name, Cristion's work exemplifies the intersection of innovation and healthcare.

Latest Patents

One of Cristion's latest patents is an "Apparatus and method for non-invasive, passive fetal heart monitoring." This invention provides a method and apparatus for monitoring the fetal condition in an objective, quantitative, and non-invasive manner. It enables continuous and highly specific data collection during prenatal development and the intra-partum period. The monitoring process includes tracking fetal heart rate, heart rate variability, and fetal heart vector orientation. Automated signal processing techniques are utilized to select the optimum signal vector for monitoring these vital parameters.

Another significant patent is the "Method for model-free control of general discrete-time systems." This method focuses on developing a controller for nonlinear discrete-time systems where the governing equations are unknown. Cristion's approach allows for the estimation of a controller without building or assuming a model for the system. By employing a function approximator, such as a neural network or polynomial, the unknown parameters are estimated using a stochastic approximation based on simultaneous perturbation gradient approximation.

Career Highlights

John A Cristion is affiliated with Johns Hopkins University, where he continues to contribute to research and innovation in medical technology. His work has garnered attention for its potential to improve fetal monitoring practices and enhance patient care.

Collaborations

Cristion has collaborated with notable colleagues, including John C Harris and Wayne I Sternberger. Their combined expertise has further advanced the research and development of innovative solutions in their field.

Conclusion

John A Cristion's contributions to the field of medical technology through his patents and collaborations highlight his commitment to innovation. His work in fetal monitoring systems represents a significant advancement in healthcare technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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