Rovcal, Inc.
55Patents
18Active
55Granted
43Portfolio score
Filing activity: Sep 10, 2001 → Jul 19, 2010 · 17 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7645540B2 | Separators for alkaline electrochemical cells | Emerging Cross-Sectional Technologies | 36 | Active |
| US7931981B2 | Separators for alkaline electrochemical cells | Emerging Cross-Sectional Technologies | 33 | Active |
| USD509920S1 | Lantern | General | 32 | Expired |
| USD620643S1 | Lint remover | General | 30 | Expired |
| USD620198S1 | Personal grooming device | General | 25 | Expired |
| USD620641S1 | Personal grooming device | General | 24 | Expired |
| US7748123B2 | Electric hair cutting appliance with counter weight | Performing Operations; Transporting | 22 | Active |
| USD620200S1 | Personal grooming device | General | 21 | Expired |
| US7074516B2 | Vent for cylindrical electrochemical batteries | Electricity | 20 | Expired |
| USD513342S1 | Rotary shaver | General | 20 | Expired |
| USD632434S1 | Personal grooming device | General | 20 | Expired |
| US6922909B2 | Attachment for hair dryers | Human Necessities | 19 | Expired |
| USD620642S1 | Personal grooming device | General | 16 | Expired |
| US7859220B2 | Method and apparatus for charging electrochemical cells | Electricity | 15 | Active |
| USD511493S1 | Charger | General | 12 | Expired |
| US8079149B2 | Electric hair cutting appliance with counter weight | Performing Operations; Transporting | 12 | Active |
| US7763384B2 | Alkaline cells having high capacity | Emerging Cross-Sectional Technologies | 12 | Active |
| USD504978S1 | Hair straightener | General | 11 | Expired |
| US8453333B2 | Electric hand-held hair cutting appliance with blade clamping device | Performing Operations; Transporting | 10 | Active |
| USD509011S1 | Flashlight | General | 10 | Expired |
| USD508579S1 | Light | General | 9 | Expired |
| USD619766S1 | Portion of a personal grooming device | General | 9 | Expired |
| USD612967S1 | Flashlight | General | 9 | Expired |
| USD519449S1 | Charger | General | 9 | Expired |
| US7563537B2 | Ionically conductive clay additive for use in electrochemical cells | Emerging Cross-Sectional Technologies | 8 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.