JAMESBURY, INC.
16Patents
0Active
16Granted
29Portfolio score
Filing activity: May 29, 1974 → Nov 27, 1987
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4881718A | Ball control valve | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| US4817916A | Butterfly valve | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US4390039A | Valve assembly and disassembly device | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4162690A | Valve locking device | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4388945A | Valve assembly and disassembly device | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4114856A | Valve seat insert | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4202365A | Fire tested butterfly valve | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4236691A | Ball valve to relieve cavity pressure | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4623121A | Butterfly valve seat | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4228816A | Fire safe butterfly valve | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4230025A | Pneumatic actuator | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4575048A | Insert retainer for a wafer style butterfly valve | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4331319A | Butterfly valve | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4645180A | Wire form type insert retainer for a wafer style butterfly valve | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4016907A | Tank bottom internal valve housing | Emerging Cross-Sectional Technologies | 4 | Expired |
| US3939864A | Valve lock | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.