Company Filing History:
9 out of 44 
3 out of 120 
1 out of 171 Years Active: 1977-1988
Title: Innovator Edward F. Clatworthy: Pioneering Nickel-Base Alloys
Introduction
Edward F. Clatworthy, an accomplished inventor based in Huntington, West Virginia, holds a remarkable portfolio of 13 patents. His innovative work focuses on developing high-strength nickel-base alloys, which have significant applications in various industries, particularly in the petroleum sector.
Latest Patents
Among Edward's notable recent patents is the creation of a corrosion-resistant high-strength nickel-base alloy. This alloy offers an attractive combination of strength, ductility, and resistance to harsh environmental media. The alloys can be processed through cold working and age hardening to achieve impressive yield strengths ranging from 150,000 psi (1034 MPa) to 200,000 psi (1379 MPa). They also demonstrate tensile elongations of 10% to 20% and show remarkable resistance to corrosive media, such as hydrogen sulfide and acid chloride solutions. These properties make the alloys particularly useful for petroleum production tubing and sulfur dioxide gas scrubber applications.
Another significant patent involves a process for heat treating alloy objects. In this process, a nickel-base alloy containing elements like chromium, molybdenum, copper, titanium, aluminum, and iron is solution treated at temperatures exceeding 955°C. The alloy is then aged without intervening cold work at temperatures between 700°C and 720°C. This treatment results in a tough, non-cold worked structure that is resistant to stress corrosion cracking, making it suitable for demanding environments, such as sour gas wells.
Career Highlights
Edward has made substantial contributions to the field of metallurgy, working with esteemed companies including Huntington Alloys Corporation and Inco Alloys International, Inc. His expertise in developing advanced materials has had a lasting impact on the industry.
Collaborations
Throughout his career, Edward has collaborated with other talented professionals, including Darrell F. Smith, Jr. and Herbert L. Eiselstein. Together, they have worked on innovative projects that advance the science of alloy production and treatment.
Conclusion
Edward F. Clatworthy stands out as a pioneering inventor in the field of nickel-base alloys. His groundbreaking patents and collaborative efforts showcase the importance of innovation in creating materials that meet the demanding needs of various industries. With a legacy built upon strength and resilience, Edward's contributions continue to influence the field and inspire future advancements in alloy technology.