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For the Inventor, By the Inventor

Wellesley Hills, MA, United States of America

K-Nfb Reading Technology, Inc.


USPTO Granted Patents = 35

% Expired Patents = 80.0

Forward Citations = 438

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9 inventors (with patents filed for the assignee):

goldMedal Paul Albrecht (34 out of 68 patents)

silverMedal Raymond C Kurzweil (33 out of 105 patents)

bronzeMedal Lucy Gibson (22 out of 42 patents)

4.  Peter Chapman (14 out of 15 patents)

5.  James Gashel (9 out of 9 patents)

6.  Lev Lvovsky (7 out of 11 patents)

7.  Rafael Maya Zetune (4 out of 6 patents)

8.  Jeff Brewer (1 out of 1 patent)

9.  Srivathsan Krishnamachari (1 out of 1 patent)


35 patents:

1. 9478219 - Audio synchronization for document narration with user-selected playback (2016-10-25),
2. 9218680 - Systems and methods for rendering graphical content and glyphs (2015-12-22),
3. 8954328 - Systems and methods for document narration with multiple characters having multiple moods (2015-02-10),
4. 8903723 - Audio synchronization for document narration with user-selected playback (2014-12-02),
5. 8873890 - Image resizing for optical character recognition in portable reading machine (2014-10-28),
6. 8793133 - Systems and methods document narration (2014-07-29),
7. 8711188 - Portable reading device with mode processing (2014-04-29),
8. 8626512 - Cooperative processing for portable reading machine (2014-01-07),
9. 8588528 - Systems and methods for displaying scanned images with overlaid text (2013-11-19),
10. 8554464 - Navigation using portable reading machine (2013-10-08),
11. 8531494 - Reducing processing latency in optical character recognition for portable reading machine (2013-09-10),
12. 8498867 - Systems and methods for selection and use of multiple characters for document narration (2013-07-30),
13. 8498866 - Systems and methods for multiple language document narration (2013-07-30),
14. 8392186 - Audio synchronization for document narration with user-selected playback (2013-03-05),
15. 8370151 - Systems and methods for multiple voice document narration (2013-02-05),
K-NFB Reading Technology, Inc. is a technology company specializing in the development of innovative mobile solutions for individuals with print disabilities. They are committed to making printed information accessible to everyone through their flagship product, the KNFB Reader. The KNFB Reader is a mobile app that utilizes optical character recognition (OCR) technology to convert printed text into speech or Braille, enabling people with visual impairments or learning disabilities to read printed materials independently. With a strong focus on accessibility, K-NFB Reading Technology continues to advance their technology to empower individuals and improve their accessibility to information.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

K-Nfb Reading Technology, Inc.
35 Patents

#1 in Wellesley Hills, MA

#582 in Massachusetts

#9,734 in US

#19,126 in the World

Wellesley Hills, MA (US)
Wellesley Hills, MA, United States of America

K-Nfb Reading Technology, Inc.

Forward Citations = 438

9 inventors:

goldMedal Paul Albrecht (34 out of 68 patents)

silverMedal Raymond C Kurzweil (33 out of 105 patents)

bronzeMedal Lucy Gibson (22 out of 42 patents)

4.  Peter Chapman (14 out of 15 patents)

5.  James Gashel (9 out of 9 patents)

Please report any incorrect information to [email protected]
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