Location History:
- Echirolles, FR (1992)
- Saint Ismier, FR (1994 - 2019)
Company Filing History:
14 out of 3,559 
2 out of 4,872 
1 out of 174 
Years Active: 1992-2019
Title: The Innovative Contributions of Pierre Grangeat
Introduction
Pierre Grangeat is a notable inventor based in Saint Ismier, France. He has made significant contributions to the field of chromatography and electrochemical impedance analysis. With a total of 17 patents to his name, Grangeat's work has advanced the understanding and application of various scientific methods.
Latest Patents
One of his latest patents is a method for estimating a retention time in a chromatography column. This invention focuses on estimating the retention time of particles in a chromatography column where parameters such as temperature are modulated. By adopting a probabilistic approach, Grangeat's method allows for the statistical distribution of retention times to be determined for a set of particles of a given type.
Another significant patent is a method for detecting defective electrodes in a micro-electrode matrix. This method involves measuring the electrochemical impedance spectrum for each electrode and modeling the spectrum impedance using an implicit non-integral frequency model. Through principal components analysis, the parameter matrix is transformed into a final matrix that represents the variables in a new space. The distances between each electrode and a reference point are calculated and compared to a preset threshold, classifying electrodes as defective if they exceed this threshold.
Career Highlights
Throughout his career, Grangeat has worked with prominent organizations such as the Commissariat à l'Énergie Atomique and Intellectual Ventures Fund 83 LLC. His experience in these institutions has allowed him to refine his skills and contribute to groundbreaking research and development.
Collaborations
Grangeat has collaborated with notable individuals in his field, including Regis Guillemaud and Philippe Rizo. These partnerships have fostered innovation and have been instrumental in the development of his patented methods.
Conclusion
Pierre Grangeat's contributions to the fields of chromatography and electrochemical analysis are noteworthy. His innovative patents and collaborations reflect his commitment to advancing scientific knowledge and technology. His work continues to influence the industry and inspire future innovations.