Piston ring
US-11408508-B2 · Aug 9, 2022 · US
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Lammers Ralf patents
Lammers Ralf is listed as an inventor on 6 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Lammers Ralf |
| Total patents | 6 |
| First publication | Mar 13, 2018 |
| Latest publication | Aug 9, 2022 |
Notable patents
Publications ranked by popularity score, then publication date.
Piston ring
US-2020309263-A1 · Oct 1, 2020 · US
Method for producing piston a ring
US-10370755-B2 · Aug 6, 2019 · US
Piston ring
US-2018259069-A1 · Sep 13, 2018 · US
Piston ring for internal combustion engines
US-10000840-B2 · Jun 19, 2018 · US
Piston ring
US-9915346-B2 · Mar 13, 2018 · US
Recent patents
Latest publications not already listed above.
No data yet.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Fed Mogul Burscheid Gmbh | 6 |
| Wilmington Trust Nat Association As Collateral Trustee | 1 |
| Fischer Manfred | 1 |
| Lammers Ralf | 1 |
| Bauer Christiane | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F16J9/26 | 6 |
| C23C14/0641 | 4 |
| C23C28/42 | 3 |
| C23C28/044 | 3 |
| C23C14/06 | 3 |