Illingworth; Lewis
Patent Applications and Registrations
Patent applications and USPTO patent grants for Illingworth; Lewis.The latest application filed is for "passive transfer chamber separator".
Company Profile
0.26.32
- Illingworth; Lewis - Kensington NH
- Illingworth; Lewis - Kesington NH
- Illingworth; Lewis - Exeter NH
Patent Activity
| Patent | Date |
|---|---|
| Vortex vacuum cleaner nozzle with means to prevent plume formation Grant 7,143,468 - Illingworth , et al. December 5, 2 | 2006-12-05 |
| Vortex attractor without a backplate Grant 6,960,063 - Reinfeld , et al. November 1, 2 | 2005-11-01 |
| Cannister and upright vortex vacuum cleaners Grant 6,957,472 - Illingworth , et al. October 25, 2 | 2005-10-25 |
| Flat spool elastic motor having time-averaged constant torque output Grant 6,896,104 - Illingworth May 24, 2 | 2005-05-24 |
| Suction cup vortex attractor Grant 6,881,025 - Illingworth , et al. April 19, 2 | 2005-04-19 |
| Vortex pool cleaner Grant 6,811,687 - Illingworth November 2, 2 | 2004-11-02 |
| Vortex attractor with vanes attached to containing ring and backplate Grant 6,802,693 - Reinfeld , et al. October 12, 2 | 2004-10-12 |
| Rotating wave dust separator Grant 6,802,881 - Illingworth , et al. October 12, 2 | 2004-10-12 |
| Dynamic transfer chamber separator App 20040139709 - Illingworth, Lewis ; et al. | 2004-07-22 |
| Passive transfer chamber separator App 20040139710 - Illingworth, Lewis ; et al. | 2004-07-22 |
| Rotating wave dust separator App 20040118091 - Illingworth, Lewis ; et al. | 2004-06-24 |
| Elastic motor having time-averaged constant torque output Grant 6,742,626 - Illingworth June 1, 2 | 2004-06-01 |
| Vortex attractor without a containing ring App 20040091357 - Reinfeld, David ; et al. | 2004-05-13 |
| Toroidal and compound vortex attractor Grant 6,729,839 - Illingworth , et al. May 4, 2 | 2004-05-04 |
| Vortex vacuum cleaner nozzle with means to prevent plume formation App 20040069145 - Illingworth, Lewis ; et al. | 2004-04-15 |
| Toroidal vortex vacuum cleaner centrifugal dust separator Grant 6,719,830 - Illingworth , et al. April 13, 2 | 2004-04-13 |
| Variable inductor responsive to AC current level App 20040032315 - Illingworth, Lewis | 2004-02-19 |
| Toroidal vortex vacuum cleaner with alternative collection apparatus Grant 6,689,225 - Illingworth February 10, 2 | 2004-02-10 |
| Toroidal vortex bagless vacuum cleaner Grant 6,687,951 - Illingworth , et al. February 10, 2 | 2004-02-10 |
| Vortex attractor App 20040018089 - Illingworth, Lewis ; et al. | 2004-01-29 |
| Vortex air barrier Grant 6,623,352 - Illingworth September 23, 2 | 2003-09-23 |
| Vortex attractor for planar and non-planar surfaces Grant 6,619,922 - Illingworth , et al. September 16, 2 | 2003-09-16 |
| Combined toroidal and cylindrical vortex dust separator App 20030167741 - Illingworth, Lewis ; et al. | 2003-09-11 |
| Lifting platform Grant 6,616,094 - Illingworth September 9, 2 | 2003-09-09 |
| Elastic motor with constant torque output Grant 6,612,402 - Illingworth September 2, 2 | 2003-09-02 |
| Filterless folded and ripple dust separators and vacuum cleaners using the same App 20030150198 - Illingworth, Lewis ; et al. | 2003-08-14 |
| Axial flow centrifugal dust separator App 20030136094 - Illingworth, Lewis ; et al. | 2003-07-24 |
| Vortex attractor Grant 6,595,753 - Illingworth , et al. July 22, 2 | 2003-07-22 |
| Vortex Attractor For Planar And Non-planar Surfaces App 20030133800 - Illingworth, Lewis ; et al. | 2003-07-17 |
| Vortex pool cleaner App 20030132152 - Illingworth, Lewis | 2003-07-17 |
| Cannister and upright vortex vacuum cleaners App 20030131440 - Illingworth, Lewis | 2003-07-17 |
| Vortex attractor Grant 6,565,321 - Illingworth , et al. May 20, 2 | 2003-05-20 |
| Fluid flow straightening techniques Grant 6,543,726 - Illingworth April 8, 2 | 2003-04-08 |
| Lifting platform with positive horizontal stability Grant 6,520,449 - Illingworth February 18, 2 | 2003-02-18 |
| Vortex air barrier App 20030031558 - Illingworth, Lewis | 2003-02-13 |
| Elastic motor having time-averaged constant torque output App 20030024769 - Illingworth, Lewis | 2003-02-06 |
| Suction cup vortex attractor App 20030021687 - Illingworth, Lewis ; et al. | 2003-01-30 |
| Vortex attractor with propellers App 20020182077 - Reinfeld, David ; et al. | 2002-12-05 |
| Traversing vortex attractor App 20020176778 - Reinfeld, David ; et al. | 2002-11-28 |
| Safety plate for a vortex attractor App 20020176777 - Reinfeld, David ; et al. | 2002-11-28 |
| Vortex attractor with vanes attached to containing ring and backplate App 20020155001 - Reinfeld, David ; et al. | 2002-10-24 |
| Vortex attractor with a stationary containing ring App 20020155002 - Reinfeld, David ; et al. | 2002-10-24 |
| Toroidal vortex nozzle App 20020148069 - Illingworth, Lewis | 2002-10-17 |
| Lifting platform with energy recovery Grant 6,464,459 - Illingworth October 15, 2 | 2002-10-15 |
| Toroidal vortex vacuum cleaner centrifugal dust separator App 20020084218 - Illingworth, Lewis | 2002-07-04 |
| Ballasts for operating light emitting diodes in AC circuits Grant 6,388,393 - Illingworth May 14, 2 | 2002-05-14 |
| Lifting platform with energy recovery App 20020047071 - Illingworth, Lewis | 2002-04-25 |
| Toroidal vortex vacuum cleaner with alternative collection apparatus App 20020020296 - Illingworth, Lewis | 2002-02-21 |
| Toroidal vortex bagless vacuum cleaner App 20020020035 - Illingworth, Lewis | 2002-02-21 |
| Elastic motor App 20010050201 - Illingworth, Lewis | 2001-12-13 |
| Lifting platform with positive horizontal stability App 20010048052 - Illingworth, Lewis | 2001-12-06 |
| Vortex attractor App 20010048877 - Illingworth, Lewis ; et al. | 2001-12-06 |
| Elastic motor App 20010045325 - Illingworth, Lewis | 2001-11-29 |
| Lifting platform App 20010040062 - Illingworth, Lewis | 2001-11-15 |
| Fluid flow straightening techniques App 20010036406 - Illingworth, Lewis | 2001-11-01 |
| Resonant fly-forward converter circuit Grant 5,831,838 - Illingworth November 3, 1 | 1998-11-03 |
| Resonant forward converter circuit with control circuit for controlling switching transistor on and off times Grant 5,424,933 - Illingworth June 13, 1 | 1995-06-13 |
| DC to AC converter Grant 4,636,927 - Rhyne , et al. January 13, 1 | 1987-01-13 |
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