Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9702565 | Damper suitable for liquid aerosol-laden flow streams | Derek W. Schrock, Darrin W. Beardslee, Andrew C. Faller | 2017-07-11 |
| 9662519 | Fire suppression systems, devices, and methods | Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock | 2017-05-30 |
| 9664395 | Low profile exhaust hood | Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee | 2017-05-30 |
| 9645009 | Ultraviolet monitoring systems, methods, and devices | Chester Raczewski | 2017-05-09 |
| 9644851 | Automatic displacement ventilation system with heating mode | Rick A. Bagwell | 2017-05-09 |
| 9574779 | Exhaust apparatus, system, and method for enhanced capture and containment | Heinz Ritzer, Fridolin Muehlberger | 2017-02-21 |
| 9494324 | Exhaust flow control system and method | Chester Raczewski, Derek W. Shrock | 2016-11-15 |
| 9393338 | Air purification devices methods and systems | Rick A. Bagwell | 2016-07-19 |
| 9335057 | Real-time control of exhaust flow | Rick A. Bagwell, Derek W. Schrock | 2016-05-10 |
| 9239169 | Low profile exhaust hood | Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee | 2016-01-19 |
| 9194592 | Energy recovery devices, systems, and methods | Fuoad A. Parvin, Derek W. Schrock | 2015-11-24 |
| 9188354 | Control of exhaust systems | Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee | 2015-11-17 |
| 9134036 | Oven exhaust hood methods, devices, and systems | Rick A. Bagwell, Philip J. Meredith, Derek W. Schrock, Andrew C. Faller, Darrin W. Beardslee | 2015-09-15 |
| 9119891 | Ultraviolet monitoring systems, methods, and devices | Chester Raczewski | 2015-09-01 |
| 9011215 | Control of exhaust systems | Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee | 2015-04-21 |
| 8487776 | Duct grease deposit detection devices, systems, and methods | Derek W. Schrock | 2013-07-16 |
| 8444462 | Control of exhaust systems | Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee | 2013-05-21 |
| RE44146 | Zone control of space conditioning system with varied uses | Rick A. Bagwell | 2013-04-16 |
| 8398928 | Fume treatment method and apparatus using ultraviolet light to degrade contaminants | Rick A. Bagwell, Darrin W. Beardslee, Derek W. Schrock | 2013-03-19 |
| 8038515 | Control of exhaust systems | Derek W. Schrock, Rick A. Bagwell, Darrin W. Beardslee | 2011-10-18 |
| RE42735 | Method and apparatus for controlling space conditioning in an occupied space | Rick A. Bagwell | 2011-09-27 |
| 8002881 | Fume treatment method and apparatus using ultraviolet light to degrade contaminants | Rick A. Bagwell, Darren Beardslee, Derek W. Schrock | 2011-08-23 |
| 7993423 | High efficiency grease filter cartridge | Pekka Kyllonen, Rick A. Bagwell, Darrin W. Beardslee, Derek W. Schrock | 2011-08-09 |
| 7775865 | Set and forget exhaust controller | Derek W. Schrock | 2010-08-17 |
| 7601054 | Zone control of space conditioning system with varied uses | Rick A. Bagwell | 2009-10-13 |