Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11274668 | Vacuum pump having a silencer | Dieter Kolvenbach, Otmar Cornely | 2022-03-15 |
| 10851783 | Dry vacuum pump with pressurized bearing and seal | Robert Jenkins, Clive Marcus Lloyd Tunna | 2020-12-01 |
| 9476423 | Roots pump connection channels separating adjacent pump stages | Thomas Dreifert, Robert Jenkins, Clive Marcus Lloyd Tunna | 2016-10-25 |
| 9017040 | Roughing pump method for a positive displacement pump | — | 2015-04-28 |
| 8702407 | Multistage roots vacuum pump having different tip radius and meshing clearance from inlet stage to exhaust stage | Nigel Paul Schofield | 2014-04-22 |
| 8602759 | Screw-type vacuum pump having overpressure openings | Robert Jenkins, Roland Muller, Magnus Janicki, Wolfgang Giebmanns | 2013-12-10 |
| 8500422 | Vacuum pump | Stephen Dowdeswell, Nigel Paul Schofield | 2013-08-06 |
| 7214041 | Seal assemblies | David Alan Turrell, Malcolm William Gray, Neil Turner | 2007-05-08 |
| 6244841 | Vacuum pumps | Nigel Paul Schofield, Michael Morris | 2001-06-12 |
| 5836739 | Gas turbine engine | Shigenori Haramura, Mark G. Norton, Michael John Raine, Graham A. Reynolds | 1998-11-17 |
| 5635768 | Gas turbine engine driven auxiliary electric power unit with turbine speed controlled in response to generator output current | Takeshi Ikeyama, Anthony David Wearing, Mark G. Norton | 1997-06-03 |
| 5606853 | Gaseous fuel compression and control system for gas turbine engine | Mark G. Norton | 1997-03-04 |
| 5261289 | High reduction gear assembly with lubrication | Toshiyuki Kondo, Shinji Kono | 1993-11-16 |
| 5220233 | Dynamoelectric machines | Alan B. Turner, Toshiyuki Kondo, Katsuhiro Mori | 1993-06-15 |
| 5148670 | Gas turbine cogeneration apparatus for the production of domestic heat and power | Toshiyuki Kondo, Katsuhiro Mori | 1992-09-22 |
| 5121610 | Air cycle air conditioner for heating and cooling | Michael John Atkinson | 1992-06-16 |