Company Filing History:
12 out of 194 
5 out of 12 
1 out of 2 Years Active: 1989-2025
Title: Innovations by Michael D. Harfst: A Visionary Inventor from Milwaukie, OR
Introduction
Michael D. Harfst is an accomplished inventor based in Milwaukie, Oregon, holding a remarkable portfolio of 17 patents. His inventive spirit has led to significant advancements in tools, particularly in the realm of chainsaws, contributing to improved functionality and efficiency.
Latest Patents
Among his latest innovations is a groundbreaking design for a targeted oil delivery system for chainsaw bars. This invention features one or more oil channels running along the length of the chainsaw bar. Each channel receives oil at one end, which is then released through an exit aperture positioned near the cutting area. This ensures optimal lubrication of the saw chain just before it engages with the material being cut. Additionally, Harfst has developed a saw chain link with oversized rivet holes, allowing for enhanced movement and flexibility within the chain mechanism. This clearance of approximately 0.010 inches or more between the rivet and the edge of the oversized hole enables the saw chain to shift between stable positions, optimizing performance.
Career Highlights
Over the years, Michael Harfst has made notable contributions while working at prominent companies such as Blount, Inc. and Oregon Tool, Inc. His expertise in the design and development of cutting tools has made him a respected figure in the industry.
Collaborations
Throughout his career, Harfst has collaborated with talented individuals such as James Matthew Cunnington and Christopher David Seigneur. Their partnerships have contributed to the innovation processes that have propelled the development of advanced tools and mechanisms in the market.
Conclusion
Michael D. Harfst exemplifies the essence of innovation through his inventive designs and contributions to the chainsaw industry. His work continues to impact the efficiency and effectiveness of cutting tools, making him a noteworthy inventor to watch in the future. With a total of 17 patents, his legacy of innovation is assured as he paves 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.