Inventor
Betsy J. Butke
Inventor
Mentor, OH, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Mprimary
C10MLubricating compositions40%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions40%
C07GCompounds of unknown constitution10%
C09KMaterials for miscellaneous applications, not provided for elsewhere10%
PatentTitleYear
9,944,878Lubricant system clean-up compositions and methods thereof20188,969,266'Lubricating composition containing a carboxylic functionalised polymer'20158,703,672'Highly branched sulfonates for drive-line applications'20146,645,920'Additive composition for industrial fluid'20035,843,873'Lubricants and fluids containing thiocarbamates and phosphorus'19985,158,698'Liquid compositions containing thiocarbamates and polyoxyalkylene glycols or carboxylic esters'19924,963,282'Liquid compositions containing thiocarbamates'19904,758,362'Carbamate additives for low phosphorus or phosphorus free lubricating compositions'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2018Patents assigned to LUBRIZOL CORP (8)· patent assignee history
1988–2018Based in Mentor, OH, US· patent location history
2014–2018Patents assigned to BUTKE BETSY J (3)· patent assignee history
2014Patents assigned to FRIEND CHRISTOPHER (1)· patent assignee history
2014Patents assigned to HOLLINGSHURST CLAIRE (1)· patent assignee history
2015Patents assigned to CRAWLEY SETH L (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LUBRIZOL CORP | 8 | 1988–2018 |
| BUTKE BETSY Jself | 3 | 2014–2018 |
| CRAWLEY SETH L | 1 | 2015 |
| FRIEND CHRISTOPHER | 1 | 2014 |
| HOLLINGSHURST CLAIRE | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mentor, OH, US | 8 | 1988–2018 |