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For the Inventor, By the Inventor

Windsor, Canada

Diffracto, Ltd.


USPTO Granted Patents = 66


Forward Citations = 2,924

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16 inventors (with patents filed for the assignee):

goldMedal Timothy R Pryor (63 out of 177 patents)

silverMedal Omer L Hageniers (18 out of 39 patents)

bronzeMedal Donald A Clarke (16 out of 16 patents)

4.  Nicholas Liptay-Wagner (9 out of 9 patents)

5.  Walter J Pastorius (7 out of 8 patents)

6.  Rodger L Reynolds (7 out of 7 patents)

7.  Nick Liptay-Wagner (5 out of 25 patents)

8.  Bernard S Hockley (5 out of 26 patents)

9.  W J Pastorius (4 out of 23 patents)

10.  Roland Renaud (3 out of 3 patents)

11.  Frank Karpala (1 out of 1 patent)

12.  John M Sonley (1 out of 1 patent)

13.  David M Alway (1 out of 1 patent)

14.  Blaine Richards (1 out of 1 patent)

15.  Walter P North (1 out of 1 patent)


Core Competencies:
Electro-Optical Systems
Robotic Alignment
Non-Destructive Testing
Surface Inspection
Optical Measurement
Dimensional Information
Robot Calibration
Photodetector Arrays
Retroreflective Inspection
Filling Machines
Coordinate Measuring
Quality Assurance

66 patents:

1. 6211506 - Method and apparatus for electro-optically determining the dimension, location and attitude of objects (2001-04-03),
2. 6127689 - Method and apparatus for positioning a member relative to an object (2000-10-03),
3. 5793647 - System and method for graphical image data acquistion, storage, and (1998-08-11),
4. 5206700 - Methods and apparatus for retroreflective surface inspection and (1993-04-27),
5. 5168322 - Surface inspection using retro-reflective light field (1992-12-01),
6. 5164579 - Method and apparatus for electro-optically determining the dimension, (1992-11-17),
7. 5114230 - Electro-optical inspection (1992-05-19),
8. 5112131 - Controlled machining of combustion chambers, gears and other surfaces (1992-05-12),
9. 5074661 - Methods and apparatus for retroreflective surface inspection and (1991-12-24),
10. 5012574 - Controlled machining of combustion chambers gears and other surfaces (1991-05-07),
11. 5004339 - Method and apparatus for determining physical characteristics of objects (1991-04-02),
12. 4920385 - Panel surface flaw inspection (1990-04-24),
13. 4907888 - Non destructive testing and other applications using retroreflective (1990-03-13),
14. 4875776 - Electro-optical inspection (1989-10-24),
15. 4863268 - Diffractosight improvements (1989-09-05),
Diffracto, Ltd. is a technology company based in Windsor, CA, specializing in electro-optical inspection systems. The organization focuses on developing advanced solutions for non-destructive testing and surface inspection, leveraging cutting-edge optical measurement techniques. Their expertise encompasses robotic alignment, robot calibration, and the use of photodetector arrays to provide precise dimensional information. Diffracto's innovations serve various industries, enhancing quality control and operational efficiency through reliable inspection methodologies.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

66 Patents

#1 in Windsor

#5,520 in Canada

#11,150 in the World

Windsor, CA
Windsor, Canada

Diffracto, Ltd.

Forward Citations = 2,924

16 inventors:

goldMedal Timothy R Pryor (63 out of 177 patents)

silverMedal Omer L Hageniers (18 out of 39 patents)

bronzeMedal Donald A Clarke (16 out of 16 patents)

4.  Nicholas Liptay-Wagner (9 out of 9 patents)

5.  Walter J Pastorius (7 out of 8 patents)

Please report any incorrect information to [email protected]
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