Inventor
Leon P. Janik
Inventor
Suffield, CT, US
Overview
Patents· 54 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation48%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
Y10TTechnical subjects covered by former us classification7%
LOC234%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding2%
F01MLubricating of machines or engines in general2%
F01PCooling of machines or engines in general2%
F02NStarting of combustion engines2%
F02DControlling combustion engines1%
PatentTitleYear
7,442,292'Liquid visual display'20087,412,896'Filter change indicator'20087,360,433'Filter change indicator'20087,137,303'Filter change indicator'20066,911,143'Base receptacle for filter cartridge incorporating a peripheral compatibility matrix'20056,881,334'Eccentric interference retention system for a filter cartridge'20056,863,811'Filter cartridge incorporating a peripheral compatibility matrix'20056,843,911'Base receptacle with fixed retainer for filter cartridge incorporating a peripheral compatibility matrix'20056,755,308'Filter cartridge with grommet spring'20046,740,234'Key track system'2004D0484568'Filter cartridge'2003D0479300'Filter cartridge'20036,506,302'Key system for ecological filter cartridge and element'20036,500,335'Filter system base module with self-locking cartridge retainer'20026,471,070'Ecological fuel filter cartridge and element'20026,364,121'Filter cartridge with grommet spring'20026,187,188'Filter cartridge retention system'2001D0435631'Filter cartridge'20006,125,822'Two stage pressure relief valve'20006,048,455'Filter assembly with conformal cartridge support structure'20006,019,890'Fuel filter with hand primer'20005,985,144'Reverse flow cartridge'19995,938,921'Water baffle for filter cartridge'19995,915,926'Lift pump for filter module'19995,887,573'Fuel filter with cold start circuit'19995,868,931'Primer system for filter assembly'19995,837,137'Base/cartridge location and key system for fuel filter assembly'19985,794,598'Fuel circuit and circulation method for fuel injection system'19985,766,463'Fuel filter cartridge'19985,614,091'Fuel filter master module with optional diverter capability'19975,578,221'Fuel filter with improved hand primer'19965,525,225'Fuel filter with internal vent'19965,489,384'Single stage fuel filter with seal control air purge'19965,484,527'Module for filter assembly base'19965,474,676'Filter base assembly'19955,413,711'Fuel filter with internal vent'1995D0356852'Fuel filter cartridge'19955,312,546'Dry change fuel filter system'19945,271,836'Disposal plug for filter cartridge'19935,236,579'Fuel filter assembly with modular drain bowl'19935,203,994'Fuel filter retention system'19935,186,829'Fuel filter key system'19935,084,170'Fuel filter'19925,035,797'Key system for filter assembly'19915,017,285'Fuel filter and cartridge assembly'19914,976,852'Fuel filter'19904,971,528'Lube oil pump with relief valve'19904,938,193'Fuel injection nozzle'19904,894,900'Tool for removing a fuel injection nozzle'19904,876,990'Spray nozzle assembly for piston cooling'19894,862,838'Crankcase oil spray nozzle for piston cooling'19894,790,055'Method of assembling a fuel nozzle assembly'19884,273,085'Air starter'19814,170,210'Air starter'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1988Patents assigned to STANADYNE INC (2)· patent assignee history
1979–1981Based in Hazardville, CT, US· patent location history
1981Patents assigned to JANIK JR LEON P (1)· patent assignee history
1988–2008Based in Suffield, CT, US· patent location history
1989–2001Patents assigned to STANADYNE AUTOMOTIVE CORP (35)· patent assignee history
2002–2008Patents assigned to STANADYNE CORP (16)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| STANADYNE AUTOMOTIVE CORP | 35 | 1989–2001 |
| STANADYNE CORP | 16 | 2002–2008 |
| STANADYNE INC | 2 | 1979–1988 |
| JANIK JR LEON Pself | 1 | 1981 |
Locations
| Location | Patents | Span |
|---|---|---|
| Suffield, CT, US | 52 | 1988–2008 |
| Hazardville, CT, US | 2 | 1979–1981 |