Inventor

Eberhard Wittchow

Inventor

Erlangen, DE

Overview

34→

Patents

1977–2008

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 34 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F22Bprimary

F22BMethods of steam generation67%

F01KSteam engine plants4%

F23CMethods or apparatus for combustion using fluid fuel or solid fuel suspended in a carrier gas or air4%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

B01DSeparation2%

F22DPreheating, or accumulating preheated, feed-water for steam generation2%

F22GSuperheating of steam2%

F23JRemoval or treatment of combustion products or combustion residues2%

F23MCasings, linings, walls or doors specially adapted for combustion chambers, e.g. firebridges2%

PatentTitleYear

7,428,374'Horizontally assembled steam generator'2008 7,116,899'Operating method for a horizontal steam generator and a steam generator for carrying out said method'2006 6,715,450'Fossil-fuel fired continuous-flow steam generator'2004 6,651,596'Continous flow steam generator having a double-flue construction'2003 6,481,386'Fossil-fired continuous-flow steam generator'2002 6,446,580'Fossil fuel-fired continuous-flow steam generator'2002 6,408,800'Separator for a water/steam separating apparatus'2002 6,302,194'Pipe with ribs on its inner surface forming a multiple thread and steam generator for using the pipe'2001 6,301,895'Method for closed-loop output control of a steam power plant, and steam power plant'2001 6,250,257'Method for operating a once-through steam generator and once-through steam generator for carrying out the method'2001 6,192,837'Once-through steam generator and method for starting up a once-through steam generator'2001 6,189,491'Steam generator'2001 6,125,634'Power plant'2000 6,044,804'Method and device for monitoring a feedwater supply to a steam generator'2000 5,979,369'Once-through steam generator having spirally disposed evaporator tubes'1999 5,967,097'Once-through steam generator and a method of configuring a once-through steam generator'1999 5,839,396'Method and apparatus for starting up a continuous-flow steam generator'1998 5,735,236'Fossil fuel-fired once-through flow stream generator'1998 5,727,505'Apparatus for separating water and steam'1998 5,706,766'Method of operating a once-through steam generator and a corresponding steam generator'1998 5,701,850'Steam generator'1997 5,662,070'Once-through steam generator with a vertical gas flue of essentially vertically disposed tubes'1997 5,347,955'Steam generator'1994 5,159,897'Continuous-flow steam generator'1992 5,056,468'Steam generator'1991 4,987,862'Once-through steam generator'1991 4,926,799'Continuous flow steam generator'1990 4,869,210'Method of operating a once-through steam generator'1989 4,841,727'Device for generating flue gas to drive a gas turbine'1989 4,543,110'Method and plant for reheating flue gases behind a wet flue-gas desulfurization plant'1985 4,271,792'Steam generator for generating steam from feedwater of reduced quality'1981 4,205,633'Device for separating water and steam in a once-through steam generator'1980 4,074,360'Fuel and feedwater-monitoring system of a once-through steam generator'1978 4,063,522'Burner installation in a steam generator with firing means for pulverized coal and gas'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1985Patents assigned to KRAFTWERK UNION AG (5)· patent assignee history

1977–2008Based in Erlangen, DE· patent location history

1989–2008Patents assigned to SIEMENS AG (29)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SIEMENS AG	29	1989–2008
KRAFTWERK UNION AG	5	1977–1985

Locations

Location	Patents	Span
Erlangen, DE	34	1977–2008