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Henderson's Federal Spring Works Pty. Ltd.

USPTO Granted Patents = 2

Forward Citations = 17

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5 inventors (with patents filed for the assignee):

John A Clements (1 out of 4 patents)

William H Maloney (1 out of 3 patents)

Ronald S Park (1 out of 4 patents)

4. Manfred H Geitz (1 out of 1 patent)

5. Robert J Hillyard (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 5224757 - Lumbar support waist band and mechanism therefor (1993-07-06),

2. 4828908 - Vandal resistant seat (1989-05-09),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#169 in

#2,049 in Australia

Henderson's Federal Spring Works Pty. Ltd.

Forward Citations = 17

5 inventors:

John A Clements (1 out of 4 patents)

William H Maloney (1 out of 3 patents)

Ronald S Park (1 out of 4 patents)

4. Manfred H Geitz (1 out of 1 patent)

5. Robert J Hillyard (1 out of 1 patent)

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