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For the Inventor, By the Inventor

Campbellfield, Victoria, Australia

Gmca Pty Limited


USPTO Granted Patents = 56


Trademarks = 2

Forward Citations = 714

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9 inventors (with patents filed for the assignee):

goldMedal Michael E Waldron (28 out of 102 patents)

silverMedal Peter John Hosking (7 out of 8 patents)

bronzeMedal Robert Firth (6 out of 21 patents)

4.  Keith Park (6 out of 10 patents)

5.  James Hastie (4 out of 4 patents)

6.  Colin Snowball (3 out of 3 patents)

7.  Nigel Roberts (2 out of 2 patents)

8.  Mike Waldron (1 out of 1 patent)

9.  Jason Jones (1 out of 1 patent)

10.  Harry Szommer (11 patents)

11.  Graham Gerhardt (11 patents)

12.  Warren Brown (0 patent)


Core Competencies:
Powered Planer
Belt Sander
Lawn Edger
Circular Saw
Cordless Drill
Mitre Saw
Grinder Power Tool
Dust Extraction Apparatus
Powered Jigsaw
Rotary Tool
Random Orbital Sander
Portable Dust Collector

56 patents:

1. D598261 - Powered planer (2009-08-18),
2. D592025 - Powered planer tool (2009-05-12),
3. 7526867 - Tool with clamping apparatus and an improved scrolling mechanism (2009-05-05),
4. D587977 - Base for a router power tool (2009-03-10),
5. D574686 - Belt sander (2008-08-12),
6. D566492 - Lawn edger (2008-04-15),
7. 7328514 - Power tool bearing arrangement (2008-02-12),
8. D555449 - Sander tool (2007-11-20),
9. 7284335 - Guideline generation apparatus for power tool (2007-10-23),
10. D552953 - Circular saw (2007-10-16),
11. D548557 - Cordless drill (2007-08-14),
12. D547338 - Mitre saw (2007-07-24),
13. D545156 - Grinder power tool (2007-06-26),
14. D544324 - Powered angle grinder (2007-06-12),
15. D540643 - Powered drill (2007-04-17),
GMCA Pty Limited is a leading construction company specializing in commercial and industrial projects. With over 20 years of experience, we have successfully delivered a wide range of projects for clients across various industries. Our commitment to quality, safety, and customer satisfaction sets us apart from our competitors. Contact us today to discuss your next construction project.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 13 2026

56 Patents

#1 in Campbellfield, Victoria

#55 in Australia

#12,448 in the World

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Campbellfield, Victoria, Australia

Gmca Pty Limited

Forward Citations = 714

9 inventors:

goldMedal Michael E Waldron (28 out of 102 patents)

silverMedal Peter John Hosking (7 out of 8 patents)

bronzeMedal Robert Firth (6 out of 21 patents)

4.  Keith Park (6 out of 10 patents)

5.  James Hastie (4 out of 4 patents)

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