Water Heater Innovations, Inc.
8Patents
0Active
8Granted
29Portfolio score
Filing activity: Oct 7, 1992 → May 20, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5442157A | Electronic temperature controller for water heaters | Mechanical Engineering; Lighting; Heating | 88 | Expired |
| US5774627A | Scale reducing heating element for water heaters | Electricity | 22 | Expired |
| US5371831A | Electrical heating element assembly for water heater | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5878192A | Heating element for water heaters with scale control | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6143217A | Method of manufacturing a water heater | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6349169B1 | Attachment structure for vessel fitting | Performing Operations; Transporting | 4 | Expired |
| US5943475A | Heating element for water heaters with scale control | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6164486A | Integral telescoping vessel joint and method for using the same | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.