AE PLC
92Patents
0Active
92Granted
39Portfolio score
Filing activity: Nov 5, 1980 → Aug 16, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4421588A | Plastics alloy compositions | Emerging Cross-Sectional Technologies | 62 | Expired |
| US4679493A | Reinforced pistons | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4646595A | Machine tools | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5335711A | Process and apparatus for metal casting | Performing Operations; Transporting | 44 | Expired |
| US4651631A | Manufacture of pistons | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4592405A | Squeeze casting of articles | Performing Operations; Transporting | 33 | Expired |
| US4811253A | Method and apparatus for the measurement of airfoils | Physics | 33 | Expired |
| US4838149A | Pistons | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US4492631A | Centrifugal separator | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4616389A | Manufacture of camshafts | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4592782A | Composition of matter incorporating polyether ether ketone | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4669369A | Piston and piston ring assemblies | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US4629200A | Non-metallic piston rings with controlled expansion pressure | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4876947A | Pistons with bearing lands | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US5096581A | Centrifugal oil filter | Emerging Cross-Sectional Technologies | 26 | Expired |
| USD287599S | Piston | General | 25 | Expired |
| US4939984A | Investment-cast piston crown cap with encapsulated non-metallic insulating core | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4921734A | Cylinder liners | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4727795A | Pistons | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4651580A | Actuators | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4831919A | Asymmetric oval piston with higher convexity thrust face | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4498898A | Centrifugal separator | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4456391A | Tilting pad thrust bearing | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4631515A | Vehicle gear shift indicator | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4708104A | Reinforced pistons | Emerging Cross-Sectional Technologies | 20 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.