For the Inventor, By the Inventor

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Salisbury, NC, United States of America

Power Curbers, Inc.

USPTO Granted Patents = 12

Trademarks = 2

Forward Citations = 263

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10 inventors (with patents filed for the assignee):

John Charles Colvard (6 out of 6 patents)

Clifford J Griffith (2 out of 4 patents)

Samuel Y Clarke, Jr (2 out of 2 patents)

4. Dwight Ferrand Messinger (1 out of 1 patent)

5. Fred Russell Humphries (1 out of 1 patent)

6. Shane Andrew James Dunstan (1 out of 1 patent)

7. Orie L Beaver, Jr (1 out of 1 patent)

8. Anthony E Yon (1 out of 1 patent)

9. Joseph V Miller (1 out of 1 patent)

10. James W Wise (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 8073566 - Automated stringline installation system (2011-12-06),

2. 8068962 - 3D control system for construction machines (2011-11-29),

3. 7393156 - Construction apparatus for planting a series of vertical posts (2008-07-01),

4. 6984089 - Adjustable-batter side plate for slip-form paver (2006-01-10),

5. 6715957 - Paving apparatus with retractable pavement forming assembly (2004-04-06),

6. 6692185 - Adjusting arrangement for steerable transport assembly for self-propelled construction vehicle (2004-02-17),

7. 6109825 - Paving apparatus with automatic mold positioning control system (2000-08-29),

8. 5662431 - Self-propelled slip-form paving apparatus (1997-09-02),

9. 4808026 - Construction apparatus with earth trimmer (1989-02-28),

10. 4789266 - Self-propelled construction apparatus (1988-12-06),

11. 4319859 - Ditch lining apparatus (1982-03-16),

12. 4197032 - Apparatus and method for forming a continuous strip of paving (1980-04-08),

Power Curbers is a leading manufacturer of concrete slipform machinery for curbs, gutters, sidewalks, and more. With over 65 years of experience in the industry, Power Curbers provides high-quality equipment that is built to last. Their machines are used by contractors around the world to create durable, precision-crafted concrete products.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

12 Patents

#1 in Salisbury, NC

#542 in North Carolina

#24,788 in US

#46,688 in the World

Salisbury, NC, United States of America

Power Curbers, Inc.

Forward Citations = 263

10 inventors:

John Charles Colvard (6 out of 6 patents)

Clifford J Griffith (2 out of 4 patents)

Samuel Y Clarke, Jr (2 out of 2 patents)

4. Dwight Ferrand Messinger (1 out of 1 patent)

5. Fred Russell Humphries (1 out of 1 patent)

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