Inventor

Rudolf Kral

Inventor

Stulln, DE

Overview

1977–2017

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 30 as inventor

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

F22Bprimary

F22BMethods of steam generation70%

Y02PClimate change mitigation technologies in the production or processing of goods8%

F01KSteam engine plants5%

F23CMethods or apparatus for combustion using fluid fuel or solid fuel suspended in a carrier gas or air5%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry3%

F02CGas-turbine plants3%

F22DPreheating, or accumulating preheated, feed-water for steam generation3%

F22GSuperheating of steam3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

PatentTitleYear

9,810,101'Method for starting a continuous steam generator'2017 8,297,236'Steam generator'2012 8,146,540'Continuous steam generator'2012 7,878,157'Fossil-fuel heated continuous steam generator'2011 7,628,124'Steam generator in horizontal constructional form'2009 7,624,708'Process for operating a continuous steam generator'2009 7,587,133'Method for starting a continuous steam generator and continuous steam generator for carrying out said method'2009 7,516,719'Continuous steam generator'2009 7,428,374'Horizontally assembled steam generator'2008 7,406,928'Horizontally constructed continuous steam generator and method for the operation thereof'2008 7,383,791'Continuous steam generator and method for operating said continuous steam generator'2008 7,281,499'Method for starting a steam generator comprising a heating gas channel that can be traversed in an approximately horizontal heating gas direction and a steam generator'2007 7,270,086'Steam generator'2007 7,116,899'Operating method for a horizontal steam generator and a steam generator for carrying out said method'2006 6,868,807'Steam generator'2005 6,557,499'Fossil-fuel-fired once-through steam generator'2003 6,536,380'Fossil-fuel heated steam generator, comprising dentrification device for heating gas'2003 6,499,440'Fossil-fired steam generator'2002 6,446,580'Fossil fuel-fired continuous-flow steam generator'2002 6,446,584'Fossil-fuel-fired steam generator'2002 6,301,895'Method for closed-loop output control of a steam power plant, and steam power plant'2001 6,189,491'Steam generator'2001 5,983,639'Method and system for starting up a continuous flow steam generator'1999 5,979,369'Once-through steam generator having spirally disposed evaporator tubes'1999 5,701,850'Steam generator'1997 5,308,585'Process and apparatus for cooling hot solids coming from a fluidized bed reactor'1994 4,579,089'Steam generator, especially a continuous flow steam generator'1986 4,403,575'Device for preventing flashing to steam in an economizer of a flow through steam generator'1983 4,063,522'Burner installation in a steam generator with firing means for pulverized coal and gas'1977 4,063,534'Coal-fired steam generator with heating surfaces above the firing or combustion chamber'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1986Patents assigned to KRAFTWERK UNION AG (4)· patent assignee history

1977–2003Based in Erlangen, DE· patent location history

1983–1986Based in Langensendelbach, DE· patent location history

1997–2017Patents assigned to SIEMENS AG (25)· patent assignee history

1997–1999Based in Forchheim, DE· patent location history

2005–2017Based in Stulln, DE· patent location history

2006–2012Based in Stulin, DE· patent location history

2012–2017Patents assigned to KRAL RUDOLF (3)· patent assignee history

2012Patents assigned to FRANKE JOACHIM (2)· patent assignee history

2012Patents assigned to EFFERT MARTIN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SIEMENS AG	25	1997–2017
KRAFTWERK UNION AG	4	1977–1986
KRAL RUDOLFself	3	2012–2017
FRANKE JOACHIM	2	2012
EFFERT MARTIN	1	2012

Locations

Location	Patents	Span
Stulln, DE	12	2005–2017
Erlangen, DE	9	1977–2003
Stulin, DE	3	2006–2012
Forchheim, DE	2	1997–1999
Langensendelbach, DE	2	1983–1986