Inventor
Calvin W. Schroeck
Inventor
Eastlake, OH, US
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Mprimary
C10MLubricating compositions28%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions23%
C07CAcyclic or carbocyclic compounds12%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium11%
C10LFuels not otherwise provided for4%
F02FCylinders, pistons or casings, for combustion engines4%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
C09DCoating compositions, e.g. paints, varnishes or lacquers3%
F02BInternal-combustion piston engines3%
PatentTitleYear
10,913,915Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine202110,550,348Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine20209,982,210Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine20189,493,724'Delivery of substantially insoluble additives to functional fluids'20168,785,357'Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine'20146,002,051'Tertiary alkyl alkylphenols and organic compositions containing same'19995,616,816'Tertiary alkyl alkylphenols and organic compositions containing same'19975,508,331'Metal overbased and gelled natural oils'19965,300,242'Metal overbased and gelled natural oils'19944,981,602'Lubricating oil compositions and concentrates'19914,959,168'Sulfurized compositions, and additive concentrates and lubricating oils containing same'19904,952,328'Lubricating oil compositions'19904,904,401'Lubricating oil compositions'19904,741,848'Boron-containing compositions, and lubricants and fuels containing same'19884,579,666'Phosphorus-containing metal salt/olefin compositions and reaction products of same with active sulfur'19864,507,215'Phosphorus-containing metal salt/olefin compositions and reaction products of same with active sulfur'19854,466,895'Metal salts of lower dialkylphosphorodithioic acids'19844,417,990'Mixed metal salts/sulfurized phenate compositions and lubricants and functional fluids containing them'19834,308,154'Mixed metal salts and lubricants and functional fluids containing them'19814,289,635'Process for preparing molybdenum-containing compositions useful for improved fuel economy of internal combustion engines'19814,263,150'Phosphite treatment of phosphorus acid salts and compositions produced thereby'19814,254,257'Amine salts of acidic microbial polysaccharides and their use in recovery of such polysaccharides'19814,094,739'Method for purifying microbial polysaccharides'19783,960,918'Preparation of esters of amidoalkanesulfonic acids'19763,956,354'Method for the preparation of sulfonic acid esters from free sulfonic acids'19763,937,721'Method for the preparation of sulfonic acid esters from free sulfonic acids'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2021Patents assigned to LUBRIZOL CORP (26)· patent assignee history
1976–1991Based in Eastlake, OH, US· patent location history
1994–2021Based in Willoughby Hills, OH, US· patent location history
2014–2016Patents assigned to GIESELMAN MATTHEW D (2)· patent assignee history
2014–2016Patents assigned to SCHROECK CALVIN W (2)· patent assignee history
2014Patents assigned to BARTON WILLIAM (1)· patent assignee history
2014Patents assigned to BROWN JASON R (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LUBRIZOL CORP | 26 | 1976–2021 |
| GIESELMAN MATTHEW D | 2 | 2014–2016 |
| SCHROECK CALVIN Wself | 2 | 2014–2016 |
| BARTON WILLIAM | 1 | 2014 |
| BROWN JASON R | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Eastlake, OH, US | 17 | 1976–1991 |
| Willoughby Hills, OH, US | 9 | 1994–2021 |