Assignee
HYGRAMA AG
CH·18 granted patents·273 citations·filing 1990–2003
Top patents by PatentIndex Score
18 records- 0178US6173744B1Piezoelectric valveHYGRAMA AG·Filed 1999·Granted Jan 16, 2001·37 cites·15 claims
- 0272US5823088APneumatic actuating arrangementHYGRAMA AG·Filed 1997·Granted Oct 20, 1998·20 cites·8 claims
- 0371US6004383AMembrane dryer for drying moist air with valved scavenger ductHYGRAMA AG·Filed 1998·Granted Dec 21, 1999·45 cites·5 claims
- 0470US6000676AMicrovalveHYGRAMA AG·Filed 1996·Granted Dec 14, 1999·30 cites·12 claims
- 0568US5606903ARodless pressure cylinderHYGRAMA AG·Filed 1995·Granted Mar 4, 1997·23 cites·7 claims
- 0655US6186175B1Rocker valve with pneumatic pre-controlHYGRAMA AG·Filed 1999·Granted Feb 13, 2001·19 cites·24 claims
- 0754US6276257B1Working cylinder, switch valve and pressure-actuated working unitHYGRAMA AG·Filed 1999·Granted Aug 21, 2001·13 cites·9 claims
- 0851US5245910ARodless cylinderHYGRAMA AG·Filed 1992·Granted Sep 21, 1993·13 cites·11 claims
- 0950US6101920APneumatic or hydraulic cylinder with piston position detector mounted in longitudinal groove in cylinder tube surfaceHYGRAMA AG·Filed 1998·Granted Aug 15, 2000·21 cites·6 claims
- 1049US6945276B2Valve with unilaterally constrained piezoelectric bending element as actuating deviceHYGRAMA AG·Filed 2003·Granted Sep 20, 2005·5 cites·15 claims
- 1141US5862828AOscillating valve for a double acting operating cylinderHYGRAMA AG·Filed 1997·Granted Jan 26, 1999·6 cites·3 claims
- 1240US6679162B2Working cylinder, switch valve and pressure-actuated working unitHYGRAMA AG·Filed 2001·Granted Jan 20, 2004·3 cites·5 claims
- 1335US5924443ADevice for limiting the prestress of a control springHYGRAMA AG·Filed 1997·Granted Jul 20, 1999·18 cites·3 claims
- 1435US5138935AArrangement for attaching a rail to a piston-cylinder type control deviceHYGRAMA AG·Filed 1991·Granted Aug 18, 1992·5 cites·18 claims
- 1534US5241897APressurized medium cylinderHYGRAMA AG·Filed 1992·Granted Sep 7, 1993·6 cites·13 claims
- 1626US5022499AAxially slit pressure cylinder with brake meansHYGRAMA AG·Filed 1990·Granted Jun 11, 1991·3 cites·11 claims
- 1725US6321636B1Piston rod-less pneumatic cylinderHYGRAMA AG·Filed 1999·Granted Nov 27, 2001·4 cites·10 claims
- 1822US6283010B1Piston rod-less pneumatic cylinderHYGRAMA AG·Filed 1999·Granted Sep 4, 2001·2 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when HYGRAMA AG files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →