Inventor
John Hiebert
Inventor
Levittown, PA, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Lprimary
C10LFuels not otherwise provided for33%
C10MLubricating compositions33%
C07DHeterocyclic compounds10%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions10%
A61MDevices for introducing media into, or onto, the body5%
F02BInternal-combustion piston engines5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
7,975,721'Fluid valve systems'20115,601,624'Fuel composition with reaction product of oxygenated amine, dicarbonyl linking agent, and hydrocarbyl(ene) amine'19975,569,407'Additives for fuels and lubricants'19965,552,069'Additives for fuels and lubricants'19965,538,520'Additives for fuels and lubricants'19965,538,653'Friction modifiers and antiwear additives for fuels and lubricants'19965,482,521'Friction modifiers and antiwear additives for fuels and lubricants'19965,338,470'Alkylated citric acid adducts as antiwear and friction modifying additives'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–1997Patents assigned to MOBIL OIL CORP (7)· patent assignee history
1994Based in Bensalem, PA, US· patent location history
1996–1997Based in Levittown, PA, US· patent location history
2011Patents assigned to HIEBERT JOHN (1)· patent assignee history
2011Based in Wayland, MA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MOBIL OIL CORP | 7 | 1994–1997 |
| HIEBERT JOHNself | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Levittown, Pennsylvania, US | 6 | 1996–1997 |
| Wayland, Massachusetts, US | 1 | 2011 |
| Bensalem, Pennsylvania, US | 1 | 1994 |