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For the Inventor, By the Inventor

Milan, Italy

Pgt Photonics, S.p.a


USPTO Granted Patents = 9

% Expired Patents = 44.4


Forward Citations = 20

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25 inventors (with patents filed for the assignee):

goldMedal Mario Martinelli (2 out of 35 patents)

silverMedal Aldo Righetti (2 out of 24 patents)

bronzeMedal Paolo Martelli (2 out of 8 patents)

4.  Matteo Cherchi (1 out of 13 patents)

5.  Raffaele Corsini (1 out of 6 patents)

6.  Susanna Cattelan (1 out of 2 patents)

7.  Marco Romagnoli (1 out of 25 patents)

8.  Paola Galli (1 out of 9 patents)

9.  Pierpaolo Boffi (1 out of 13 patents)

10.  Marco De Donno (1 out of 5 patents)

11.  Giacomo Antonio Rossi (1 out of 9 patents)

12.  Attilio Bragheri (1 out of 4 patents)

13.  Giulia Pietra (1 out of 3 patents)

14.  Danilo Caccioli (1 out of 3 patents)

15.  Alessandro Nottola (1 out of 2 patents)


9 patents:

1. 8064776 - Dispersion tolerant optical system and method (2011-11-22),
2. 7917031 - Method and device for stabilizing the state of polarization of a polarization multiplexed optical radiation (2011-03-29),
3. 7909518 - Optical assembly connecting a laser with optical fibre (2011-03-22),
4. 7871760 - Method to fabricate a redirecting mirror in optical waveguide devices (2011-01-18),
5. 7869475 - Misalignment prevention in an external cavity laser having temperature stabilisation of the resonator and the gain medium (2011-01-11),
6. 7860359 - Optical band splitter/combiner and apparatus comprising the same (2010-12-28),
7. 7813034 - Multi-stage Raman amplifier (2010-10-12),
8. 7573919 - Wavelength control of an external-cavity tuneable laser (2009-08-11),
9. 7528360 - Method and device for stabilizing the state of polarization of optical radiation (2009-05-05),
Company Overview
PGT Photonics S.p.a is a leading provider of innovative photonics solutions for a wide range of applications including telecommunications, medical imaging, and scientific research. With a focus on precision engineering and cutting-edge technology, PGT Photonics delivers high-quality products that meet the demanding requirements of today's fast-paced industries.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

9 Patents

#191 in Milan

#1,001 in Italy

Milan, IT
Milan, Italy

Pgt Photonics, S.p.a

Forward Citations = 20

25 inventors:

goldMedal Mario Martinelli (2 out of 35 patents)

silverMedal Aldo Righetti (2 out of 24 patents)

bronzeMedal Paolo Martelli (2 out of 8 patents)

4.  Matteo Cherchi (1 out of 13 patents)

5.  Raffaele Corsini (1 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Pgt Photonics, S.p.a. Retrieved from https://idiyas.com/company/pgt-photonics

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

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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