Clifford D. Tweedy

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St. Charles, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Small diameter low watt density immersion heating element
- Patent number 6,744,978
- Issue date Jun 1, 2004
- Watlow Polymer Technologies
- Clifford D. Tweedy
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Packaging having self-contained heater
- Patent number 6,541,744
- Issue date Apr 1, 2003
- Watlow Polymer Technologies
- Theodore Von Arx
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Flexible spirally shaped heating element
- Patent number 6,539,171
- Issue date Mar 25, 2003
- Watlow Polymer Technologies
- Theodore VonArx
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Internal heating element for pipes and tubes
- Patent number 6,516,142
- Issue date Feb 4, 2003
- Watlow Polymer Technologies
- Mike A. Grant
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heated toilet seat and methods for making same
- Patent number 6,307,180
- Issue date Oct 23, 2001
- Watlow Polymer Technologies
- Theodore Von Arx
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Small diameter low watt density immersion heating element
- Publication number 20020127006
- Publication date Sep 12, 2002
- Clifford D. Tweedy
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Internal heating element for pipes and tubes
- Publication number 20020090210
- Publication date Jul 11, 2002
- Mike A. Grant
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Flexible spirally shaped heating element
- Publication number 20020090209
- Publication date Jul 11, 2002
- Watlow Polymer Technologies
- Theodore VonArx
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Packaging having self-contained heater
- Publication number 20020040900
- Publication date Apr 11, 2002
- Theodore Von Arx
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL