Company Filing History:
15 out of 5,161 
1 out of 30,982 
Years Active: 1991-2008
Title: Innovations of Karma Vir Sangwan
Introduction
Karma Vir Sangwan is an accomplished inventor based in East Amherst, NY (US). She holds an impressive portfolio of 16 patents, showcasing her expertise in the field of vehicle climate control systems and refrigerant compressors. Her innovative contributions have significantly advanced technology in these areas.
Latest Patents
One of her latest patents is a humidity-based defog control method for a vehicle climate control system. This invention develops a fog index based on the relative humidity at or near the inner surface of the windshield. It uses this fog index to variably override the normal control settings, ensuring optimal visibility for drivers. The relative humidity is combined with a pair of humidity thresholds to form a dimensionless fog index. Fog index values within a predetermined range are applied to a variable path function for transitioning between existing control settings and those that maximize defogging.
Another notable patent is the integrated control valve for a variable capacity compressor. This invention includes an integral pressure sensor that continuously measures the refrigerant discharge pressure. The plunger of the control valve is positioned by pneumatic and electric control elements to regulate the refrigerant suction pressure. The design ensures that the pressure sensor is continuously exposed to the discharge pressure, allowing for precise control and efficiency in refrigerant management.
Career Highlights
Karma Vir Sangwan has worked with prominent companies such as Delphi Technologies, Inc. and GM Global Technology Operations LLC. Her experience in these organizations has allowed her to refine her skills and contribute to significant advancements in automotive technology.
Collaborations
Throughout her career, she has collaborated with notable individuals, including Thomas Martin Urbank and Charles Andrew Archibald. These partnerships have fostered innovation and creativity in her projects.
Conclusion
Karma Vir Sangwan's contributions to the field of vehicle climate control and refrigerant technology are noteworthy. Her patents reflect her commitment to innovation and her ability to solve complex engineering challenges. Her work continues to influence the automotive industry positively.