Inventor
TWEEDY CLIFFORD D
US5 patents
Patents
5 patentsUS6541744B2Apr 1, 2003
Packaging having self-contained heater
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US6539171B2Mar 25, 2003
Flexible spirally shaped heating element
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US6307180B1Oct 23, 2001
Heated toilet seat and methods for making same
WATLOW POLYMER TECHNOLOGIES19 citations90
US6744978B2Jun 1, 2004
Small diameter low watt density immersion heating element
WATLOW POLYMER TECHNOLOGIES38 citations88
US6516142B2Feb 4, 2003
Internal heating element for pipes and tubes
WATLOW POLYMER TECHNOLOGIES36 citations87