Kemp Development Corporation
15Patents
0Active
15Granted
32Portfolio score
Filing activity: Oct 31, 1988 → Apr 5, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5170659A | Apparatus and method for detecting fluid leakage | Emerging Cross-Sectional Technologies | 71 | Expired |
| US4911408A | Seat assembly for ball valves | Mechanical Engineering; Lighting; Heating | 43 | Expired |
| US4911196A | Inline check valve | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4940208A | Ball valve | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5766544A | Process for fluidizing particulate material within a rotatable retort | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4899980A | Ball valve | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4919391A | flanged connection for valves | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6427711B1 | Inline check valve | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5378331A | Apparatus and method for electropolishing metal workpieces | Chemistry; Metallurgy | 8 | Expired |
| US5407498A | Mechanically fluidized retort and method for treating particles therein | Chemistry; Metallurgy | 7 | Expired |
| US5000492A | Flanged connection for flow line members | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5759483A | Apparatus for treating a particulate material within a rotating retort | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US5958156A | Process for treating a particulate material within a rotating retort | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6773521B2 | Apparatus and process for treating a particulate material within a rotating retort | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6425570B1 | Ball valve having retractable sealing member | Mechanical Engineering; Lighting; Heating | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.