John A. Clements

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Noble Park, AU

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Patents Grantslast 30 patents

Information Patent Grant
Method of making vandal resistant seat
- Patent number 5,456,777
- Issue date Oct 10, 1995
- Henderson's Industries Pty. Ltd.
- Ronald S. Park
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of forming a vandal-resistant seat
- Patent number 5,275,769
- Issue date Jan 4, 1994
- Henderson's Industries Pty. Ltd.
- John A. Clements
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of making vandal resistant seat
- Patent number 5,259,896
- Issue date Nov 9, 1993
- Henderson's Industries Pty. Ltd.
- Ronald S. Park
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Vandal resistant seat
- Patent number 4,828,908
- Issue date May 9, 1989
- Henderson's Federal Spring Works Pty. Ltd.
- Ronald S. Park
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL