Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12350677 | Device for loading pellets into reactor tubes | Dennis Patrick McAndrews, Paul D. Gossen, Christopher G. Johns | 2025-07-08 |
| 12228356 | Device for cleaning inner surface of heat exchanger tubes | Dennis Patrick McAndrews, Stephen W. Brewer | 2025-02-18 |
| 11833501 | Universal tube marker for identifying chemical reactor tubes accurately and efficiently | — | 2023-12-05 |
| 11660579 | Air lance for removing pellets from tubes | Paul D. Gossen, Dennis Patrick McAndrews | 2023-05-30 |
| 11590471 | Device and method for loading pellets into reactor tubes | Dennis Patrick McAndrews, Douglas K. Cornett | 2023-02-28 |
| 11406955 | Air lance for removing pellets from a tube | Dennis Patrick McAndrews | 2022-08-09 |
| 11103842 | Device and method for loading pellets | Douglas K. Cornett | 2021-08-31 |
| 10710039 | Device and method for loading pellets | Douglas K. Cornett | 2020-07-14 |
| 10493417 | Method for loading pellets | Douglas K. Cornett, Dennis Patrick McAndrews | 2019-12-03 |
| 10267968 | Lighting and communication system for confined space | — | 2019-04-23 |
| 9500631 | Device for testing vertical tubes in a chemical reactor | Daniel D. Sympson | 2016-11-22 |
| 9293067 | Device for marking a wire | — | 2016-03-22 |
| 9205391 | Device for injecting gas into the tubes of a chemical reactor | Dennis Patrick McAndrews, Munaf Chasmawala, Matthew Laughlin, Douglas K. Cornett | 2015-12-08 |
| 9149778 | Device and method for dispensing catalyst pellets | Munaf Chasmawala, Dennis Patrick McAndrews | 2015-10-06 |
| 9138710 | Device for unloading catalyst from a reactor vessel | Dennis Patrick McAndrews, Munaf Chasmawala, Douglas K. Cornett, Matthew Laughlin | 2015-09-22 |
| 9138709 | Device and method for dispensing pellets | Munaf Chasmawala, Dennis Patrick McAndrews | 2015-09-22 |
| 9034110 | Method of cleaning tubes | August M. Dattilo, III, Munaf Chasmawala, Manfred Schmidt | 2015-05-19 |
| 8752912 | Carrying case conversion to desk | Munaf Chasmawala, Dennis Patrick McAndrews, Matthew Laughlin, Douglas K. Cornett | 2014-06-17 |
| 8753452 | Method for treating vertical tubes in a chemical reactor | Daniel D. Sympson | 2014-06-17 |
| 8752291 | Method for marking tubes in a shell and tube heat exchanger | Guillermo Camoriano, Bart Andrew Nuss, Dennis Patrick McAndrews, Munaf Chasmawala, Matthew Laughlin +1 more | 2014-06-17 |
| 8646492 | Device for loading catalyst into a reactor vessel | Munaf Chasmawala, Dennis Patrick McAndrews | 2014-02-11 |
| 8562270 | Loading arrangement including a dam for confining catalyst and other particles on the top tubesheet of a chemical reactor | Dennis Patrick McAndrews, Douglas K. Cornett | 2013-10-22 |
| 8511249 | Pointer arrangement for marking tubes in a shell and tube heat exchanger | — | 2013-08-20 |
| 8336586 | Loading sleeve and method for loading chemical reactor tubes | — | 2012-12-25 |
| 8166811 | Device and process for precision loading of particles in a vertical tube chemical reactor | — | 2012-05-01 |