Lammers; Ralf
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lammers; Ralf.The latest application filed is for "piston ring".
- Lammers; Ralf - Wermelskirchen DE
| Patent | Date |
|---|---|
| Piston ring Grant 11,408,508 - Stumpf , et al. August 9, 2 | 2022-08-09 |
| Piston Ring App 20200309263 - STUMPF; WALTER ; et al. | 2020-10-01 |
| Method for producing piston a ring Grant 10,370,755 - Lammers , et al. | 2019-08-06 |
| Piston Ring App 20180259069 - LAMMERS; RALF ; et al. | 2018-09-13 |
| Piston ring for internal combustion engines Grant 10,000,840 - Fischer , et al. June 19, 2 | 2018-06-19 |
| Piston ring Grant 9,915,346 - Lammers , et al. March 13, 2 | 2018-03-13 |
| Piston ring for internal combustion engines Grant 9,598,763 - Fischer , et al. March 21, 2 | 2017-03-21 |
| Sliding element, in particular a piston ring, having a coating Grant 9,488,275 - Ivanov , et al. November 8, 2 | 2016-11-08 |
| Sliding element, in particular a piston ring, having a coating Grant 9,488,276 - Kennedy , et al. November 8, 2 | 2016-11-08 |
| Piston ring Grant 9,447,490 - Hoppe , et al. September 20, 2 | 2016-09-20 |
| Method For Producing Piston A Ring App 20160122862 - LAMMERS; Ralf ; et al. | 2016-05-05 |
| Sliding Element, In Particular A Piston Ring, Having A Coating App 20150362071 - Ivanov; Yuriy ; et al. | 2015-12-17 |
| Sliding Element, In Particular A Piston Ring, Having A Coating App 20150292622 - Kennedy; Marcus ; et al. | 2015-10-15 |
| Piston Ring App 20140353923 - Lammers; Ralf ; et al. | 2014-12-04 |
| Piston ring Grant 8,857,820 - Herbst-Dederichs , et al. October 14, 2 | 2014-10-14 |
| Method For Coating At Least The Inner Face Of A Piston Ring And Piston Ring App 20130136861 - Barenreuter; Dirk ; et al. | 2013-05-30 |
| Piston ring Grant 8,273,469 - Hoppe , et al. September 25, 2 | 2012-09-25 |
| Piston Ring App 20120228831 - Herbst-Dederichs; Christian ; et al. | 2012-09-13 |
| Sliding element, in particular piston ring, method for manufacturing a sliding element, sliding system and coating for a sliding element Grant 8,201,831 - Hoppe , et al. June 19, 2 | 2012-06-19 |
| Piston Ring App 20100187765 - Hoppe; Steffen ; et al. | 2010-07-29 |
| Piston Ring App 20100171272 - Hoppe; Steffen ; et al. | 2010-07-08 |
| Piston Ring For Internal Combustion Engines App 20100044968 - Fischer; Manfred ; et al. | 2010-02-25 |
| Piston Ring For Internal Combustion Engines App 20100044969 - Fischer; Manfred ; et al. | 2010-02-25 |
| Sliding Element, in Particular Piston Ring, Method for Manufacturing a Sliding Element, Sliding System and Coating for a Sliding Element App 20090001669 - Hoppe; Steffen ; et al. | 2009-01-01 |
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