For the Inventor, By the Inventor

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Canon City, CO, United States of America

Portec, Inc.

USPTO Granted Patents = 46

Trademarks = 6

Forward Citations = 506

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57 inventors (with patents filed for the assignee):

Richard A Tatina (4 out of 15 patents)

David M Pruett (4 out of 4 patents)

James C Robertson (4 out of 4 patents)

4. David A Stoller, Sr (4 out of 4 patents)

5. Robert D Brown (3 out of 3 patents)

6. Richard A Compton (3 out of 3 patents)

7. Chandrakant D Ravani (3 out of 3 patents)

8. Richard L Fischer (3 out of 3 patents)

9. William Thomas Urmson, Jr (2 out of 14 patents)

10. Ronald K Junk (2 out of 5 patents)

11. Rodney R Mishmash (2 out of 2 patents)

12. John Ivey (2 out of 2 patents)

13. Russell J Hogsett (2 out of 2 patents)

14. Thomas R Walker (2 out of 2 patents)

15. John P Dorscht (2 out of 5 patents)

46 patents: Sort by Forward Citations

1. 7650979 - Ball transfer device (2010-01-26),

2. 6050395 - Knife edge converter (2000-04-18),

3. 5732827 - Screening apparatus (1998-03-31),

4. 5598914 - Removable sidewall for a molded spiral chute (1997-02-04),

5. 5484111 - Hammers for hammer mills (1996-01-16),

6. 5482152 - Sortation table (1996-01-09),

7. 5394977 - Apparatus and method for use in replacing conveyor belts (1995-03-07),

8. 5394958 - Rail lubrication apparatus (1995-03-07),

9. 5348120 - Rail lubrication apparatus (1994-09-20),

10. 5294065 - Portable screening/dosing/mixing plant (1994-03-15),

11. 5143207 - Tension controlling and shock absorbing apparatus for an endless conveyor (1992-09-01),

12. 5060788 - Chain guide mounting apparatus (1991-10-29),

13. 4974215 - Loading dock range finding system (1990-11-27),

14. 4930621 - Attachments for power turns (1990-06-05),

15. 4887708 - Drive apparatus for belt power turns (1989-12-19),

Portec, Inc. is a leading manufacturer and provider of conveyor systems and material handling solutions. With over 50 years of experience, Portec offers innovative solutions to various industries including airport, postal, parcel, and distribution centers. Their comprehensive range of products includes belt conveyors, powered curves, spiral chutes, vertical lifts, and sorting systems. Portec is committed to delivering high-quality products and exceptional customer service to help optimize efficiency and productivity in material handling operations.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

46 Patents

#1 in Canon City, CO

#136 in Colorado

#7,321 in US

#14,652 in the World

Canon City, CO, United States of America

Portec, Inc.

Forward Citations = 506

57 inventors:

Richard A Tatina (4 out of 15 patents)

David M Pruett (4 out of 4 patents)

James C Robertson (4 out of 4 patents)

4. David A Stoller, Sr (4 out of 4 patents)

5. Robert D Brown (3 out of 3 patents)

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