Headington, United Kingdom

Ian Edward Day

This inventor holds 9 USPTO granted patents. Top assignees: Bookham Technology Limited, Bookham Technologies Plc, Kotura, Inc.. Active years: 2001-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ian Edward Day. Retrieved from https://idiyas.com/inventor/ian-edward-day

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 7

Forward Citations = 165(Granted Patents)


Location History:

  • Oxford, GB (2001 - 2003)
  • Old Headington, GB (2001 - 2005)
  • Headington, GB (2003 - 2010)

Company Filing History:


Years Active: 2001-2010

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9 patents (USPTO):Explore Patents

Title: The Innovative Mind of Ian Edward Day

Introduction: Ian Edward Day, a prominent inventor based in Headington, GB, has made significant contributions to the field of electro-optics and semiconductor technology. With a remarkable portfolio of nine patents, Day continues to push the boundaries of innovation and engineering.

Latest Patents: Among his latest innovations is an electro-optic modulator. This device comprises a semiconducting layer with a waveguide, integrated with a modulator featuring p-doped and n-doped regions. These regions strategically hinder the escape of charge carriers, thus optimizing the performance of electro-optic devices. Another noteworthy invention is a thermo-optic semiconductor device, which includes a waveguide and a resistive heater that modifies the optical characteristics through thermal variations. These patents exemplify Day's expertise in developing advanced technologies that enhance optical communications.

Career Highlights: Ian Edward Day has worked with notable companies in the tech sector, including Bookham Technology Limited and Bookham Technologies Plc. His role in these organizations has significantly influenced the development of cutting-edge devices, further establishing his name in the field of patentable innovations.

Collaborations: Day has collaborated with esteemed colleagues, such as Arnold Peter Roscoe Harpin and James Stuart McKenzie. Together, they have fueled the advancement of technology, driving creativity and innovation within their projects and research endeavors.

Conclusion: Ian Edward Day’s dedication to invention and innovation has led to significant advancements in electro-optic and semiconductor technologies. With a wealth of patents and notable collaborations, he represents the essence of modern inventorship, inspiring future generations of engineers and inventors.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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