Location History:
- Einhoven, NL (2018)
- Eindhoven, NL (2010 - 2020)
Company Filing History:
14 out of 21,361 
2 out of 21 Years Active: 2010-2020
Title: The Innovative Contributions of Johan Marra
Introduction
Johan Marra, a prominent inventor based in Eindhoven, Netherlands, has made significant strides in the field of particle sensing technology. With an impressive portfolio of 16 patents, Marra's work is characterized by its innovative approaches to improving air quality and particle measurement techniques.
Latest Patents
Among Johan Marra's notable inventions are two latest patents that reflect his expertise in particle sensing. The first patent involves a "Particle Sensor and Sensing Method," which features a sophisticated design that includes an aperture for receiving a gas flow containing entrained particles. This invention employs an electrostatic particle charging section and a parallel-plate particle precipitation section to detect particle concentrations efficiently. The sensor produces a signal that correlates to the number concentration of the particles in the gas flow, calculated using a calibration constant that considers the particle diameter.
The second patent is a "Cleaning Device for Cleaning an Air-Ionizing Part of an Electrode." This device is engineered to maintain the efficacy of air-ionizing electrodes by utilizing a cleaning member that physically contacts the ionizing part of the electrode. With an actuator designed for activating relative motion between the electrode and the cleaning member, this innovative solution ensures effective maintenance of air quality systems such as ultrafine particle sensors and electrostatic air cleaners.
Career Highlights
Johan Marra is associated with Koninklijke Philips Corporation N.V., a global leader in health technology. His work at Philips has not only propelled advancements in particle sensing but also plays a vital role in furthering the mission of providing meaningful innovations that improve people's lives.
Collaborations
Throughout his career, Marra has collaborated with distinguished professionals in the field, including coworkers Hans Van Sprang and Jan De Graff. Together, they contribute to innovative projects that enhance technological capabilities and efficiency in air quality management.
Conclusion
Johan Marra's contributions to the field of inventions and innovations in particle sensing underscore the importance of research and development in improving human environments. With his extensive patent portfolio and collaboration with leading experts, Marra continues to influence the landscape of air quality technology, paving the way for future advancements.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.