Inventor
Russell W. Hoeffken
Inventor
Belleville, IL, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification25%
F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general18%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application17%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material7%
F24FAir-conditioning7%
B23PMetal-working not otherwise provided for5%
F23DBurners5%
F04DNon-positive-displacement pumps3%
F23MCasings, linings, walls or doors specially adapted for combustion chambers, e.g. firebridges3%
B01DSeparation2%
PatentTitleYear
9,423,209'Self-guided racking assist system, tool and method for charging a handgun'20168,261,568'Condensing gas package unit with a tubular conduit for passing a condensate drain line'20128,167,610'Premix furnace and methods of mixing air and fuel and improving combustion stability'20127,632,067'Blower housing and method of manufacture'20096,033,454'Air filter assembly'20005,575,330'Furnace heat exchanger seal and method of making same'19965,553,553'Furnace and method for securing a thermostat to a furnace'19965,535,501'Furnace and method for securing a thermostat to a furnace'19965,221,183'Blower housing seam and method of making same'19935,195,580'Heat exchanger seam and method of making same'19934,907,420'Dual wall evaporator pan'19904,893,390'Method and expander for manufacturing a furnace heat exchanger and plate assembly'19904,718,484'Heat exchanger unit'19884,663,837'Apparatus for manufacturing a furnace heat exchanger and plate assembly'19874,649,894'Heat exchanger and plate assembly and method of manufacture'19874,547,943'Method of manufacturing a heat exchanger and plate assembly'19854,538,338'Method for manufacturing a furnace heat exchanger and plate assembly'19854,510,660'Method of manufacturing a two-plate heat exchanger'19854,475,585'Air conditioning and heat pump cabinets with removable coil guards'19844,441,241'Method of manufacturing a heat exchanger unit'19844,394,111'Top cover, motor, fan and fan shroud assembly for an air conditioning unit'19834,298,061'Heat exchanger with crimped flange seam'19813,934,894'Utility cart and bag holder therefore'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2016Patents assigned to HOEFFKEN RUSSELL W (5)· patent assignee history
1976–2000Based in Belleville, IL, US· patent location history
1983–1990Patents assigned to SNYDER GENERAL CORP (8)· patent assignee history
1987–1988Patents assigned to SNYDERGENERAL CORP (3)· patent assignee history
1993–1996Patents assigned to ALCO IND (2)· patent assignee history
1996Patents assigned to GOODMAN MFG CO (2)· patent assignee history
2009Based in St. Louis, MO, US· patent location history
2012–2016Based in Millstadt, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SNYDER GENERAL CORP | 8 | 1983–1990 |
| HOEFFKEN RUSSELL Wself | 5 | 1976–2016 |
| SNYDERGENERAL CORP | 3 | 1987–1988 |
| ALCO IND | 2 | 1993–1996 |
| GOODMAN MFG CO | 2 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Belleville, Illinois, US | 19 | 1976–2000 |
| Millstadt, Illinois, US | 3 | 2012–2016 |
| St. Louis, MO, US | 1 | 2009 |