Patent assignee · US · COMPANY

Valtek, Inc.

7Patents
0Active
7Granted
27Portfolio score

Filing activity: Feb 10, 1984 → Aug 14, 1997

Most-cited patents

PatentTitleAreaCited byStatus
US5251148A Integrated process control valve Emerging Cross-Sectional Technologies 104 Expired
US4567915A Anti-cavitation low-noise control valve cage trim for high pressure reducing service in liquid or gaseous flow Emerging Cross-Sectional Technologies 49 Expired
US5884894A Inner-loop valve spool positioning control apparatus Emerging Cross-Sectional Technologies 20 Expired
US5386967A Ball valve coupling Mechanical Engineering; Lighting; Heating 10 Expired
US5566923A Fluid valves Mechanical Engineering; Lighting; Heating 7 Expired
US5974945A Pneumatic valve positioner with adjustable gain Emerging Cross-Sectional Technologies 1 Expired
US5282489A Fluid pressure modulator Emerging Cross-Sectional Technologies 1 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.