This inventor holds 28 USPTO granted patents and 5 published patent applications, plus 1 CIPO patent and 2 EPO patents, primarily in Fluid Measurement Technology. Top assignees: Schlumberger Technology Corporation, Schlumberger Industries, Sa, Saudi Arabian Oil Company. Active years: 1994-2025.
Location History:
- Chavilles, FR (1999)
- Princeton, NJ (US) (2006)
- Al-Khobar, SA (2013 - 2016)
- Elancourt, FR (2017 - 2023)
- Chaville, FR (1994 - 2024)
Company Filing History:
23 out of 10,734 
3 out of 71 
1 out of 7,497 
Years Active: 1994-2025
Areas of Expertise:
Title: **Patrice Ligneul: Innovating in High-Pressure and High-Temperature Environments**
Introduction
Patrice Ligneul, based in Chaville, France, is a remarkable inventor with an impressive portfolio of 28 patents. His work has significantly contributed to the fields of high-pressure and high-temperature sensor technologies, showcasing his expertise and innovative spirit.
Latest Patents
Among his recent inventions, two patents stand out for their advanced applications. The first patent describes a **Resonating Sensor for High-Pressure and High-Temperature Environments**. This device features a sensor with a double-ended tuning fork piezoelectric resonator, characterized by tines spaced apart to form a variable-width slot. This innovation is designed for efficiency and accuracy in extreme conditions.
The second patent is focused on **Fluid Component Determination Using Thermal Properties**. This method allows for the determination of phase fractions in downhole fluids through their thermal properties. It involves measuring the temperature of fluids flowing through a completion string and utilizes a thermal detector to analyze various thermal properties, enhancing the understanding of fluid dynamics in drilling operations.
Career Highlights
Patrice Ligneul has built a noteworthy career, particularly during his tenures at Schlumberger Technology Corporation and Schlumberger Industries, S.A. His contributions at these organizations have established him as a key player in developing technologies that operate efficiently under harsh environmental conditions.
Collaborations
Throughout his career, Ligneul has collaborated with esteemed colleagues, including Mohammed Badri and Tianhua Zhang. These partnerships have collectively advanced the understanding and application of resonating sensor technologies and fluid analysis systems, further driving innovation in the industry.
Conclusion
Patrice Ligneul exemplifies the spirit of innovation through his extensive work and patents focused on improving sensor technologies for high-pressure and high-temperature environments. His collaborations and career achievements reflect a dedication to advancing engineering solutions that meet the demands of challenging conditions in the field.