Dwight Isbell

Dwight Ellston Isbell
Born	23 May 1929 Seattle, Washington
Died	19 August 2011 [1]
Nationality	American
Citizenship	United States
Alma mater	University of Illinois
Known for	Co-inventor of the Log-periodic antenna
Scientific career
Institutions	University of Illinois and Boeing
Academic advisors	Raymond DuHamel

Dwight Isbell was a radio engineer, IEEE antennas and propagation fellow, and co-inventor of the Log-periodic antenna while a student at the University of Illinois under Raymond DuHamel. ^[2] The log periodic antenna made possible broadband reception of color television signals. He is notable for the invention of antenna, and the resulting lawsuits regarding the antenna. ^[3]

The invention of the antenna and the patents were widely ignored by Channel Master and Blonder-Tongue, and resulted in the precedent setting Blonder-Tongue doctrine of "judicial economy", which bars defendants of patents from that have been previously ruled invalid (changing the Triplett v. Lowe precedent).

References

1. "Dwight Ellston Isbell Obituary ( May 23, 1929 - August 19, 2011 ) Peninsula Daily News". Legacy.com.
2. ECE Alumni News. "Electrical and Computer Engineering Alumni News", Volume XXXVIII, Summer 2004. Retrieved on May 6th, 2010.
3. Supreme Court Record. "BLONDER TONGUE V. UNIVERSITY OF ILLINOIS FOUND., 402 U. S. 313", US Supreme Court, 1971. Retrieved on May 6th, 2010.