Echo Incorporated
45Patents
32Active
45Granted
51Portfolio score
Filing activity: Mar 26, 1976 → Oct 19, 2022 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5400072A | Video camera unit having an airtight mounting arrangement for an image sensor chip | Electricity | 84 | Expired |
| US5673083A | Semiconductor device and video camera unit having the same and method for manufacturing the same | Electricity | 61 | Expired |
| US5274456A | Semiconductor device and video camera unit using it and their manufacturing method | Electricity | 53 | Expired |
| US4066090A | Water cock with non-freezing valve | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4934003A | Device for transferring the disabled | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5294063A | Debris vacuum selectively usable as a hand-held and wheeled unit | Human Necessities | 25 | Expired |
| US6210109A | Portable fluid blower | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4300336A | Cutter blade assembly for weed and grass trimmers | Human Necessities | 17 | Expired |
| US5490371A | Debris guard for lawn edger | Human Necessities | 16 | Expired |
| US8020304B2 | Power transmission assembly for tool mounted on an elongate pole | Performing Operations; Transporting | 16 | Active |
| US7757405B2 | Trimmer with reciprocating blades | Human Necessities | 15 | Active |
| US10321636B2 | Vegetation trimming apparatus | Human Necessities | 8 | Active |
| USD1043289S1 | Adaptor for rotary trimmer head | General | 6 | Active |
| US5099580A | Power saw structure | Performing Operations; Transporting | 6 | Expired |
| US9132568B2 | Chainsaw with cutting chain tensioner | Emerging Cross-Sectional Technologies | 6 | Active |
| US8936434B2 | Portable in-line fluid blower | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US7823652B2 | Portable tool with a hand-gripped controller and method of using a portable powered tool | Performing Operations; Transporting | 5 | Active |
| US9492941B2 | Apparatus having a tool on an elongate pole | Performing Operations; Transporting | 4 | Active |
| US5873284A | Control for portable power tool | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8006725B2 | Log splittter | Performing Operations; Transporting | 4 | Active |
| US10716253B2 | Flexible line trimmer head | Human Necessities | 3 | Active |
| US7806196B2 | Beveled edger | Human Necessities | 3 | Active |
| US7743839B1 | Beveled edger | Human Necessities | 2 | Active |
| US10165728B2 | Edger with shielding assembly | Human Necessities | 2 | Active |
| US10251338B2 | Balanced housing construction for flexible line trimmer head and apparatus for forming the housing | Performing Operations; Transporting | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.