Koppers Delaware, Inc.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Koppers Delaware, Inc..The latest application filed is for "heat treatment process and system for increased pitch yields".
- Koppers Delaware, Inc. - Pittsburgh PA US
- Koppers Delaware, Inc. - Wilmington DE
Trademarks
| Patent | Date |
|---|---|
| Heat Treatment Process and System for Increased Pitch Yields App 20220177784 - Malmqvist; Michael Bech ; et al. | 2022-06-09 |
| Heat treatment process and system for increased pitch yields Grant 11,248,172 - Malmqvist , et al. February 15, 2 | 2022-02-15 |
| Center supported bond joint Grant 11,041,274 - Urmson, Jr. , et al. June 22, 2 | 2021-06-22 |
| Gauge Plate Insulator App 20210148058 - Singleton; Steven D. ; et al. | 2021-05-20 |
| Rail joint assembly having forged rail joint bars Grant 10,961,665 - Singleton , et al. March 30, 2 | 2021-03-30 |
| Heat Treatment Process and System for Increased Pitch Yields App 20210024830 - Malmqvist; Michael Bech ; et al. | 2021-01-28 |
| Anti-rail rollover device Grant D885,977 - Singleton , et al. | 2020-06-02 |
| Rail Joint Assembly having Forged Rail Joint Bars App 20190127923 - Singleton; Steven D. ; et al. | 2019-05-02 |
| Gauge Plate App 20180320323 - Singleton; Steven D. ; et al. | 2018-11-08 |
| Center Supported Bond Joint App 20180119362 - Urmson, JR.; W. Thomas ; et al. | 2018-05-03 |
| Single bend rail Grant 9,328,464 - Urmson, Jr. , et al. May 3, 2 | 2016-05-03 |
| Modular insulated tie plate Grant 9,103,074 - Urmson, Jr. , et al. August 11, 2 | 2015-08-11 |
| Lap joint Grant 8,777,121 - Urmson, Jr. , et al. July 15, 2 | 2014-07-15 |
| Method and arrangement to insulate rail ends Grant 8,302,878 - Urmson, Jr. , et al. November 6, 2 | 2012-11-06 |
| Center Supported Bond Joint App 20120223151 - Urmson, JR.; W. Thomas ; et al. | 2012-09-06 |
| Lap Joint App 20120111958 - Urmson, JR.; W. Thomas ; et al. | 2012-05-10 |
| Rail joint bars and rail joint assemblies Grant 8,123,144 - Urmson, Jr. , et al. February 28, 2 | 2012-02-28 |
| Lap joint Grant 8,113,441 - Urmson, Jr. , et al. February 14, 2 | 2012-02-14 |
| Notched tie plate insulator Grant 8,042,747 - Mospan , et al. October 25, 2 | 2011-10-25 |
| Coal tar and hydrocarbon mixture pitch and the preparation and use thereof Grant 7,465,387 - Golubic , et al. December 16, 2 | 2008-12-16 |
| Coal tar and hydrocarbon mixture pitch and the preparation and use thereof Grant 7,066,997 - Golubic , et al. June 27, 2 | 2006-06-27 |
| SEC | 0001053719 | KOPPERS DELAWARE INC of DELAWARE |
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