Michael H. Estkowski
18Patents
11h-index
12Co-inventors
65Inventor score
Filing activity: Oct 14, 1976 → May 18, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4892354A | Chair seat tilt control | Human Necessities | 53 | Expired |
| US5018787A | Chair seat tilt control | Human Necessities | 27 | Expired |
| US5068943A | Dual wheel tilted axle caster with an integral retainer and bearing assembly | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US4718726A | Chair seat tilt control | Human Necessities | 24 | Expired |
| US5415252A | Twin wheel caster and brake assembly | Performing Operations; Transporting | 17 | Expired |
| US4696394A | Easily removable protective covering for annular objects | Performing Operations; Transporting | 14 | Expired |
| US4353183A | Seed marker tabs | Human Necessities | 14 | Expired |
| US4339154A | Vehicle brake system | Performing Operations; Transporting | 14 | Expired |
| US5230571A | Caster bearing assembly | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5232265A | Vertical back adjust for chairs | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5075924A | Tilted axle multiple wheel caster | Performing Operations; Transporting | 11 | Expired |
| US4144862A | Engine starting system | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5226739A | Integral retainer and bearing assembly | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4763383A | Electrically conductive caster having loop depending rings | Performing Operations; Transporting | 4 | Expired |
| US4166226A | No-back synchronous motor drive | Electricity | 3 | Expired |
| US5276942A | Appliance roller | Performing Operations; Transporting | 3 | Expired |
| US4688512A | Backlighted trip indicator | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4453369A | Method of producing seed marker tabs | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.