Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9511303 | Signaling and remote control train operation | — | 2016-12-06 |
| 9449590 | Low frequency audio sound effects in model railroading | Pat Quinn | 2016-09-20 |
| 8701562 | Signaling and remote control train operation | — | 2014-04-22 |
| 8408143 | Sound systems for model railroad locomotives | — | 2013-04-02 |
| 8166887 | Sound systems for model railroad locomotives | — | 2012-05-01 |
| 8070108 | Signaling and remote control train operation | — | 2011-12-06 |
| 7954435 | Sound systems for model railroad locomotives | — | 2011-06-07 |
| RE42284 | Signaling techniques for DC track powered model railroads | Patrick A. Quinn | 2011-04-12 |
| 7859424 | Proximity control of on-board processor-based model train sound and control system | — | 2010-12-28 |
| 7770847 | Signaling and remote control train operation | — | 2010-08-10 |
| 7451708 | Sound systems for model railroad locomotives | — | 2008-11-18 |
| 7429931 | Proximity control of on-board processor-based model train sound and control system | — | 2008-09-30 |
| 6230140 | Continuous sound by concatenating selected digital sound segments | Patrick A. Quinn | 2001-05-08 |
| 5940005 | Method and apparatus for storing and utilizing a unique power down state in a model railroad system | Patrick A. Quinn | 1999-08-17 |
| 5896017 | Model train locomotive with doppler shifting of sound effects | Patrick A. Quinn | 1999-04-20 |
| 5832431 | Non-looped continuous sound by random sequencing of digital sound records | Patrick A. Quinn | 1998-11-03 |
| 5773939 | Command control for model railroading using AC track power signals for encoding pseudo-digital signals | Patrick A. Quinn | 1998-06-30 |
| 5633985 | Method of generating continuous non-looped sound effects | Patrick A. Quinn | 1997-05-27 |
| 5590856 | Complex switch turn-out arrangements using proximity selection | Patrick A. Quinn | 1997-01-07 |
| 5492290 | Model railroad operation using proximity selection | Patrick A. Quinn | 1996-02-20 |
| 5448142 | Signaling techniques for DC track powered model railroads | Patrick A. Quinn | 1995-09-05 |
| 5394068 | Automatic initialization in a model railroad motor control system | Patrick A. Quinn | 1995-02-28 |
| 5267318 | Model railroad cattle car sound effects | Patrick A. Quinn | 1993-11-30 |
| 5184048 | Model railroad reversing motor control system | Patrick A. Quinn | 1993-02-02 |
| 4914431 | Electronic control system for model railroads | Patrick A. Quinn | 1990-04-03 |