This inventor holds 16 USPTO granted patents and 2 published patent applications, plus 4 CIPO patents and 4 EPO patents, primarily in Landfill Gas Management. Top assignees: Q.e.d. Environmental Systems, Inc., Graco Minnesota Inc., Oed Environmental Systems, Inc.. Active years: 1988-2023.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ann Arbor, MI (US) (1988 - 2022)
- Dexter, MI (US) (2023)
Company Filing History:
12 out of 46 
3 out of 713 
1 out of 1 Years Active: 1988-2023
Areas of Expertise:
Title: The Innovative Contributions of David A Fischer
Introduction
David A Fischer is a notable inventor based in Ann Arbor, Michigan, with a remarkable portfolio of 16 patents. His work primarily focuses on developing advanced systems that enhance efficiency and functionality in various applications.
Latest Patents
Among his latest inventions is the Liquid Level Sensor System. This innovative fluid level sensor is designed to detect fluid levels in wells. The system features a main body and an inlet housing that connects to the main body. The inlet housing contains an internal chamber that communicates with the ambient environment within the well. A bellows within the main body interacts with the internal chamber, and a movable element responds to the bellows' movement. A sensor detects the movement of the movable element, indicating changes in fluid levels. An indicator associated with the movable element provides a visual cue when the second fluid level is reached.
Another significant invention is the Pneumatic Landfill Pump Cycle Counter. This device includes a spring located within a housing passage and a shuttle equipped with a shuttle magnet. The shuttle can move axially within the passage, responding to air pressure and airflow. The cycle counter increments a numeric count for each complete cycle of the shuttle, providing accurate tracking of pump cycles.
Career Highlights
David A Fischer has contributed his expertise to several companies, including Q.E.D. Environmental Systems, Inc. and Graco Minnesota Inc. His work in these organizations has allowed him to develop and refine his innovative ideas, leading to the successful patenting of his inventions.
Collaborations
Throughout his career, Fischer has collaborated with notable colleagues, including David Mioduszewski and David B Kaminski. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
David A Fischer's contributions to the field of invention are significant, with a focus on practical solutions that address real-world challenges. His innovative patents reflect his dedication to advancing technology and improving efficiency in various industries.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile