Inventor
Helmut Lachmann
Inventor
Berlin, DE
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F28Fprimary
F28FDetails of heat-exchange and heat-transfer apparatus, of general application35%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact27%
F16KValves8%
F22BMethods of steam generation8%
Y10TTechnical subjects covered by former us classification8%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
C01CAmmonia4%
F22GSuperheating of steam4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
PatentTitleYear
5,570,741'Water compartment for a heat exchanger'19965,472,046'Heat exchanger for cooling hot reaction gas'19955,178,102'Heat exchanger for cooling superheated steam'19935,035,283'Nested-tube heat exchanger'19914,858,684'Heat exchanger, especially for cooling cracked gas'19894,848,449'Heat exchanger, especially for cooling cracked gas'19894,768,584'Device for cooling gases deriving from ammonia synthesis'19884,673,162'High-pressure self-actuating flow-control valve assembly'19874,476,888'Overpressure valve'19844,346,758'Heat exchanger for cooling slag-containing gases from coal gasification'19824,294,312'Tube-bundle heat exchanger for cooling a medium having a high inlet temperature'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1991Patents assigned to BORSIG GMBH (7)· patent assignee history
1981–1996Based in Berlin, DE· patent location history
1984Patents assigned to TIEFENBACH & CO DR H (1)· patent assignee history
1984–1987Based in Essen, DE· patent location history
1987Patents assigned to LACHMANN HELMUT (1)· patent assignee history
1988Based in Gottfried-von-Cramm-Weg, DE· patent location history
1993–1996Patents assigned to BORSIG BABCOCK AG (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BORSIG GMBH | 7 | 1981–1991 |
| BORSIG BABCOCK AG | 3 | 1993–1996 |
| LACHMANN HELMUTself | 1 | 1987 |
| TIEFENBACH & CO DR H | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Berlin, DE | 8 | 1981–1996 |
| Essen, DE | 2 | 1984–1987 |
| Gottfried-von-Cramm-Weg, DE | 1 | 1988 |