Steadley Company
15Patents
0Active
15Granted
29Portfolio score
Filing activity: Dec 23, 1974 → Mar 5, 1996
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4377279A | Steel wire foundation | Human Necessities | 41 | Expired |
| US4903949A | Foundation unit having collapsible support members | Human Necessities | 31 | Expired |
| US4074372A | Foundation unit frame | Human Necessities | 21 | Expired |
| US5622357A | Foundation unit and method of making the same | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4770397A | Spring wire element for foundation unit | Human Necessities | 20 | Expired |
| US4101993A | Wire spring assembly and components | Human Necessities | 19 | Expired |
| US3953903A | Spring unit support and assembly | Human Necessities | 15 | Expired |
| US4122566A | Foundation unit having a posturized inner border | Human Necessities | 14 | Expired |
| US5497979A | Foundation unit, wire element for the foundation unit, and method of forming the foundation unit | Human Necessities | 10 | Expired |
| US5005809A | Spring element for a foundation unit and foundation unit employing a spring element | Human Necessities | 8 | Expired |
| US5134763A | Core insert machine and process | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5375820A | Drop-in unit, grid insert therefor and method of making same | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US5149064A | Foundation unit edge support system | Human Necessities | 4 | Expired |
| USRE29611E | Bed base for supporting a box spring | General | 4 | Expired |
| US4809958A | Foundation unit having spring wire elements | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.