K N Energy, Inc.
7Patents
0Active
7Granted
29Portfolio score
Filing activity: Jan 18, 1991 → May 4, 1995
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5511573A | Contaminated valve containment device | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5398757A | Mono-well for soil sparging and soil vapor extraction | Fixed Constructions | 27 | Expired |
| US5639936A | Solar energy in-situ soil desorption apparatus and method including controlled air intake | Performing Operations; Transporting | 8 | Expired |
| US5115866A | Soil vapor well construction | Fixed Constructions | 7 | Expired |
| US5421527A | Apparatus and method of separating asbestos contaminants from soil | Performing Operations; Transporting | 6 | Expired |
| US5601382A | Solar energy in-situ soil desorption apparatus | Performing Operations; Transporting | 6 | Expired |
| US5213031A | Can crusher including a ripper tooth | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.