Company Filing History:
3 out of 182 
1 out of 18 Years Active: 1991-2000
Title: The Innovative Genius of John R. Hart, Jr.
Introduction: John R. Hart, Jr. is an accomplished inventor based in Lexington, Ohio, known for his contributions to the field of engineering and control systems. With a remarkable portfolio of four patents, Hart has established himself as a prominent figure in innovation and technological advancement.
Latest Patents: Among his latest patents, Hart developed an "Apparatus and method for controlling a solenoid valve." This invention allows for the flow rate of the valve to be adjusted relative to a specific percent duty cycle. The controller adeptly varies the frequency and percent duty cycle of an output signal, enabling multiple slope flow rates through a single passage solenoid valve. Another significant patent is related to a "Temperature sensor," which features a thermistor within a tubular probe. This sensor utilizes lead wires connected by both crimp and weld methods, ensuring functionality independent of one another. The probe is filled with a non-rigid heat transfer medium, enhancing the efficiency of temperature measurement.
Career Highlights: John R. Hart, Jr. has worked with notable companies such as Therm-O-Disc, Incorporated and Hi-Stat Manufacturing Company, Inc. His experiences in these organizations have played a crucial role in refining his innovative skills and providing practical applications for his inventions.
Collaborations: Throughout his career, Hart has collaborated with other talented professionals, including Lowell F. Kline and Mason B. Mount. These partnerships have undoubtedly enriched his contributions to the field and fostered an environment of shared innovation.
Conclusion: John R. Hart, Jr. exemplifies the spirit of innovation in engineering through his impressive patents and professional collaborations. His commitment to advancing technology is evident in his work, making him a noteworthy inventor in the industry. His inventions not only showcase his creativity but also pave the way for future advancements in control systems and sensor technology.
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.