N-alkyl-N′-poly(oxyalkyl)hexahydropyrimidine-quaternary ammonium salts and the use thereof as corrosion inhibitors
US-9334243-B2 · May 10, 2016 · US
This page is not indexed by search engines while we improve data quality.
Leinweber Dirk patents
Leinweber Dirk holds 2 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 2 |
| Recent patents | 0 |
| First publication | Apr 16, 2015 |
| Latest publication | May 10, 2016 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Top CPC classifications
Most common classification codes in this portfolio.
| CPC | Patents |
|---|---|
| C09K8/54 | 2 |
| C23F11/141 | 2 |
| C09K2208/32 | 2 |
| C07D239/04 | 2 |
| C23F11/149 | 1 |
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Chemistry & Metallurgy | 2 |