Patent Explorer
Browse, filter, and analyze 149 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| GB2010920A | High temperature aluminum bearing alloy coatings | RTX Corp | Expired / Lapsed | 1978-12-01 | — | 1998-12-01 | 0.0 yrs | 0 | |
| US4850734A | Coupling device for a machine tool | RTX Corp | Expired / Lapsed | 1988-12-23 | 1989-07-25 | 2008-12-23 | 0.0 yrs | 6 | |
| US4820097A | Fastener with airflow opening | RTX Corp | Expired / Lapsed | 1988-03-18 | 1989-04-11 | 2008-03-18 | 0.0 yrs | 5 | |
| US4722261A | Extendable ram cannon | RTX Corp | Expired / Lapsed | 1986-09-22 | 1988-02-02 | 2006-09-22 | 0.0 yrs | 2 | |
| US4669058A | Integral control of a dependent variable in a system having at least two independent variables which influence the dependent variable | RTX Corp | Expired / Lapsed | 1985-09-30 | 1987-05-26 | 2005-09-30 | 0.0 yrs | 6 | |
| US4575802A | Robot/workpiece orientation | RTX Corp | Expired / Lapsed | 1983-07-11 | 1986-03-11 | 2003-07-11 | 0.0 yrs | 2 | |
| US4535606A | High efficiency air cycle air conditioning system | RTX Corp | Expired / Lapsed | 1983-12-09 | 1985-08-20 | 2003-12-09 | 0.0 yrs | 24 | |
| US4472476A | Composite silicon carbide/silicon nitride coatings for carbon-carbon materials | RTX Corp | Expired / Lapsed | 1982-06-24 | 1984-09-18 | 2002-06-24 | 0.0 yrs | 12 | |
| US4424004A | End cap for a rotor shaft of a rotary machine | RTX Corp | Expired / Lapsed | 1981-11-09 | 1984-01-03 | 2001-11-09 | 0.0 yrs | 16 | |
| US4321831A | Digitally compatible optical pressure measurement | RTX Corp | Expired / Lapsed | 1980-09-26 | 1982-03-30 | 2000-09-26 | 0.0 yrs | 6 | |
| US4270168A | Selective disablement in fail-operational, fail-safe multi-computer control system | RTX Corp | Expired / Lapsed | 1978-08-31 | 1981-05-26 | 1998-08-31 | 0.0 yrs | 8 | |
| US4253153A | Energy conservative control of terminal reheat heating, ventilating, and air conditioning (HVAC) systems | RTX Corp | Expired / Lapsed | 1979-06-28 | 1981-02-24 | 1999-06-28 | 0.0 yrs | 4 | |
| US4215408A | Temperature control of unoccupied living spaces | RTX Corp | Expired / Lapsed | 1977-12-12 | 1980-07-29 | 1997-12-12 | 0.0 yrs | 18 | |
| US4214037A | Silicon nitride coated carbon fibers and composites | RTX Corp | Expired / Lapsed | 1979-03-30 | 1980-07-22 | 1999-03-30 | 0.0 yrs | 6 | |
| US4205381A | Energy conservative control of heating, ventilating, and air conditioning (HVAC) systems | RTX Corp | Expired / Lapsed | 1977-08-31 | 1980-05-27 | 1997-08-31 | 0.0 yrs | 8 | |
| US4187455A | Stepper motor feedback in position servo loop | RTX Corp | Expired / Lapsed | 1975-08-04 | 1980-02-05 | 1995-08-04 | 0.0 yrs | 3 | |
| US4167388A | Apparatus for forming hollow members | RTX Corp | Expired / Lapsed | 1978-05-01 | 1979-09-11 | 1998-05-01 | 0.0 yrs | 10 | |
| US4147433A | Contour inspection | RTX Corp | Expired / Lapsed | 1977-12-12 | 1979-04-03 | 1997-12-12 | 0.0 yrs | 12 | |
| US4122240A | Skin melting | RTX Corp | Expired / Lapsed | 1977-03-02 | 1978-10-24 | 1997-03-02 | 0.0 yrs | 26 | |
| US4020700A | Unitary fluidic angular rate sensor | RTX Corp | Expired / Lapsed | 1976-02-25 | 1977-05-03 | 1996-02-25 | 0.0 yrs | 14 |
Showing 1 to 20 of 149 patents
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