Inventor
Frank L. Harwath
Inventor
Rockford, IL, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Cprimary
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids20%
Y10TTechnical subjects covered by former us classification18%
F23KFeeding fuel to combustion apparatus16%
F16DCouplings for transmitting rotation8%
F04BPositive-displacement machines for liquids6%
F16KValves6%
F01CRotary-piston or oscillating-piston machines or engines4%
F04DNon-positive-displacement pumps4%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges4%
H02KDynamo-electric machines4%
PatentTitleYear
8,076,903'Electric power storage and delivery system and method of operation'20116,155,804'Sound attenuating motor end shield for a hydraulic pump'20006,129,176'Sound attenuating motor end shield'20005,692,680'Fuel supply unit for an oil burner'19975,368,068'Relief valve for the fuel pump of an oil burner'19945,346,174'Spring-biased valve assembly for a gear pump'19945,316,457'Gear pump with improved gear/shaft retention'19945,145,328'Fuel supply unit for an oil burner'19924,958,997'Two-stage gear pump with improved spur gear mounting'19904,898,523'Gear pump with ring-type shaft retainer'19904,858,884'Diaphragm-actuated valve for a gear pump'19894,856,553'Pump with valve adjusting screw'19894,728,271'Gear pump with improved pinion mounting'19884,685,871'Gear pump with means for preventing shaft lock-up'19874,490,105'Fuel supply system for a recirculating fuel burner'19844,391,580'Liquid fuel supply system for an atomization burner nozzle'19834,171,939'Arrangement for mounting a gear on a shaft'19794,021,155'Oil burner pumping system with air purging valve'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1984Patents assigned to SUNDSTRAND CORP (4)· patent assignee history
1977–1997Based in Rockford, IL, US· patent location history
1987–2000Patents assigned to SUNTEC IND INC (11)· patent assignee history
1989Patents assigned to SUNTEX IND INC (1)· patent assignee history
2000Based in Stillman Valley, IL, US· patent location history
2011Patents assigned to HARWATH FRANK (1)· patent assignee history
2011Patents assigned to MICROSUN TECHNOLOGIES LLC (1)· patent assignee history
2011Based in Naperville, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUNTEC IND INC | 11 | 1987–2000 |
| SUNDSTRAND CORP | 4 | 1977–1984 |
| HARWATH FRANKself | 1 | 2011 |
| MICROSUN TECHNOLOGIES LLC | 1 | 2011 |
| SUNTEX IND INC | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rockford, Illinois, US | 15 | 1977–1997 |
| Stillman Valley, Illinois, US | 2 | 2000 |
| Naperville, Illinois, US | 1 | 2011 |