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For the Inventor, By the Inventor

Sandefjord, Norway

John Petter Fjeldstad

This inventor holds 6 USPTO granted patents. Top assignee: Holotech A.s.. Active years: 2003-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John Petter Fjeldstad. Retrieved from https://idiyas.com/inventor/john-petter-fjeldstad

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

USPTO Granted Patents = 6

% Patents Active = 83.3

Average Co-Inventor Count = 9.3

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:

goldMedal6 out of 6 
 
Holotech A.s.
 patents

Years Active: 2003-2006

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6 patents (USPTO):Explore Patents
1. 6998197 - Device for registration of optical holograms on the amorphous molecular semiconductor films (2006-02-14),
2. 6998195 - Device for registration of optical holograms on the amorphous molecular semiconductor films (2006-02-14),
3. 6765677 - Method and device for non-destructive real-time measurements of residual stresses in planar and non-planar objects (2004-07-20),
4. 6628399 - Method and device real time non-destructive determination of residual stresses in objects by the optical holographic interferometry technique (2003-09-30),
5. 6558851 - Optical medium for registration of holographic interferograms (2003-05-06),
6. 6522409 - Method and device for non-destructive inspection of objects by means of optical holographic interferometry (2003-02-18),

Title: Innovations of John Petter Fjeldstad

Introduction

John Petter Fjeldstad is a notable inventor based in Sandefjord, Norway. He has made significant contributions to the field of holography, particularly through his innovative patents. With a total of six patents to his name, Fjeldstad continues to push the boundaries of technology and science.

Latest Patents

One of his latest inventions is a device for the registration of optical holograms on amorphous molecular semiconductor films. This invention focuses on a method and device for recording optical holograms using amorphous molecular semiconductor (AMS) films. These films are deposited on a glass substrate that is pre-covered with a transparent electric conducting sub-layer. The device operates to ensure that the AMS-films achieve maximum information parameters, including holographic sensitivity and optimal spatial frequency. It also enhances the signal-to-noise ratio in the restored holographic image and optimizes the operational efficiency of the registering media. The device is designed to restrict the development and erasing of the hologram upon reaching a pre-set value of diffraction efficiency, making it a universal device.

Career Highlights

Fjeldstad is currently associated with Holotech AS, where he continues to innovate and develop new technologies. His work has garnered attention in the field of holography, showcasing his expertise and commitment to advancing this area of study.

Collaborations

He collaborates with notable individuals such as Irina Evgenievna Fjeldstad and Leonid Mikhailovich Lobanov, contributing to a dynamic and innovative work environment.

Conclusion

John Petter Fjeldstad's contributions to holography through his patents and collaborations highlight his role as a leading inventor in the field. His innovative spirit continues to inspire advancements in technology and science.

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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