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For the Inventor, By the Inventor

Richardson, TX, United States of America

D4d Technologies, LLC


USPTO Granted Patents = 45

% Expired Patents = 26.7



Trademarks = 2

Forward Citations = 984

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36 inventors (with patents filed for the assignee):

goldMedal Mark S Quadling (25 out of 27 patents)

silverMedal Henley S Quadling (21 out of 23 patents)

bronzeMedal Rod A Duncan (19 out of 19 patents)

4.  Justin G Graham (8 out of 8 patents)

5.  Ye Li (6 out of 11 patents)

6.  Andrei Tchouprakov (6 out of 6 patents)

7.  Alan Blair (6 out of 12 patents)

8.  Grant E Kenworthy (5 out of 7 patents)

9.  Jeffrey Theorin Prince (5 out of 13 patents)

10.  Basil A Haymann (5 out of 5 patents)

11.  Branko Bem (4 out of 19 patents)

12.  Glen Freeman (4 out of 4 patents)

13.  Joel Witt (4 out of 4 patents)

14.  Jessica Hawkins (3 out of 3 patents)

15.  Lasse H Toimela (3 out of 3 patents)


Core Competencies:
Holographic Digitizer
Intra-Oral Scanning
Optical Coherence Tomography
3D Modeling
Augmented Reality
Handheld Scanner
Milling Machine
Laser Digitizer
Dental Laboratory
Real-Time Highlighting
Texture Mapping

45 patents:

1. 12539020 - Holographic digitizer illuminator with mutually variant wavelengths (2026-02-03),
2. 12086950 - Intra-oral scanning device with active delete of unwanted scanned items (2024-09-10),
3. 11925435 - Intra-oral scanning device with integrated optical coherence tomography (OCT) (2024-03-12),
4. 11836881 - Intra-oral scanning device with active delete of unwanted scanned items (2023-12-05),
5. 11648095 - Intra-oral scanning device (2023-05-16),
6. 11382517 - Intra-oral scanning device with integrated optical coherence tomography (OCT) (2022-07-12),
7. 11270520 - Intra-oral scanning device with active delete of unwanted scanned items (2022-03-08),
8. D918209 - Handheld scanner tip (2021-05-04),
9. 10888968 - Milling machine calibration method, and article of manufacture (2021-01-12),
10. 10657662 - Display method and system for enabling an operator to visualize and correct alignment errors in imaged data sets (2020-05-19),
11. 10586388 - Real-time detail highlighting on 3D models (2020-03-10),
12. D862697 - Handheld scanner (2019-10-08),
13. 9922459 - Real-time detail highlighting on 3D models (2018-03-20),
14. 9730776 - Display method and system for enabling an operator to visualize and correct alignment errors in imaged data sets (2017-08-15),
15. D780182 - Handheld scanner (2017-02-28),
Company Overview
D4D Technologies, LLC, based in Richardson, TX, specializes in advanced dental technology solutions. The company focuses on the development of intra-oral scanning devices and optical coherence tomography systems, enhancing precision in dental diagnostics and treatment planning. Their innovative products include handheld scanners and milling machine calibration tools, alongside augmented reality systems and laser digitizer technologies. D4D is dedicated to improving dental workflows through cutting-edge 3D photogrammetry and dynamic texture mapping techniques.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

D4d Technologies, LLC USPTO Patent Assignee Logo
45 Patents

#14 in Richardson, TX

#432 in Texas

#7,787 in US

#15,450 in the World

Richardson, TX (US)
Richardson, TX, United States of America

D4d Technologies, LLC

Forward Citations = 984

36 inventors:

goldMedal Mark S Quadling (25 out of 27 patents)

silverMedal Henley S Quadling (21 out of 23 patents)

bronzeMedal Rod A Duncan (19 out of 19 patents)

4.  Justin G Graham (8 out of 8 patents)

5.  Ye Li (6 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: D4d Technologies, LLC. Retrieved from https://idiyas.com/company/d4d-technologies

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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