Inventor

Fred D. Lang

Inventor

San Rafael, CA, US

Overview

1994–2012

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 23 as inventor

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

F23Nprimary

F23NRegulating or controlling combustion31%

F22BMethods of steam generation19%

G01NInvestigating or analysing materials by determining their chemical or physical properties7%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%

G05BControl or regulating systems in general6%

F01KSteam engine plants4%

Y10TTechnical subjects covered by former us classification4%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material2%

C21BManufacture of iron or steel2%

D21HPulp compositions2%

PatentTitleYear

8,091,361'Method and apparatus for controlling the final feedwater temperature of a regenerative Rankine cycle using an exergetic heater system'2012 7,809,526'Apparatus for the determination and evaluation of coal chemistry based on the genetics of fossil fuels'2010 7,504,260'Method and apparatus for controlling gas temperatures associated with pollution reduction processes'2009 7,328,132'Input/Loss Method using the genetics of fossil fuels for determining fuel chemistry, calorific value and performance of a fossil-fired power plant'2008 7,300,235'Key duplicating machine'2007 7,040,095'Method and apparatus for controlling the final feedwater temperature of a regenerative rankine cycle'2006 7,039,555'Method for detecting heat exchanger tube failures and their location when using input/loss performance monitoring of a recovery boiler'2006 6,873,933'Method and apparatus for analyzing coal containing carbon dioxide producing mineral matter as effecting input/loss performance monitoring of a power plant'2005 6,868,368'Method for improving the control of power plants when using input/loss performance monitoring'2005 6,824,650'Fibrous materials treated with a polyvinylamine polymer'2004 6,810,358'Method to synchronize data when used for input/loss performance monitoring of a power plant'2004 6,799,146'Method for remote on-line advisory diagnostics and dynamic heat rate when used for input/loss performance monitoring of a power plant'2004 6,745,152'Method for detecting heat exchanger tube failures when using input/loss performance monitoring of a power plant'2004 6,714,877'Method for correcting combustion effluent data when used for input-loss performance monitoring of a power plant'2004 6,691,054'F factor method for determining heat rate and emission rates of a fossil-fired system'2004 6,651,035'Method for detecting heat exchanger tube failures and their location when using input/loss performance monitoring of a power plant'2003 6,584,429'Input/loss method for determining boiler efficiency of a fossil-fired system'2003 6,560,563'L factor method for determining heat rate of a fossil fired system based on effluent flow'2003 6,522,994'Input/loss method for determining fuel flow, chemistry, heating value and performance of a fossil-fired system'2003 5,790,420'Methods and systems for improving thermal efficiency, determining effluent flows and for determining fuel mass flow rates of a fossil fuel fired system'1998 5,367,470'Method for fuel flow determination and improving thermal efficiency in a fossil-fired power plant'1994 5,327,356'Emissions spectral radiometer/fuel flow instrument'1994 5,306,209'Contaminant shield for viewing ports'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2012Patents assigned to LANG FRED D (4)· patent assignee history

1994Patents assigned to EXERGETICS SYSTEMS INC (1)· patent assignee history

1994Based in Livermore, CA, US· patent location history

1998–2012Based in San Rafael, CA, US· patent location history

2003–2012Patents assigned to EXERGETIC SYSTEMS LLC (15)· patent assignee history

2004Patents assigned to KIMBERLY CLARK CO (1)· patent assignee history

2004Based in Neenah, WI, US· patent location history

2007Patents assigned to JET HARDWARE MFG CORP (1)· patent assignee history

2007Based in Brooklyn, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EXERGETIC SYSTEMS LLC	15	2003–2012
LANG FRED Dself	4	1994–2012
EXERGETICS SYSTEMS INC	1	1994
JET HARDWARE MFG CORP	1	2007
KIMBERLY CLARK CO	1	2004

Locations

Location	Patents	Span
San Rafael, California, US	18	1998–2012
Livermore, California, US	3	1994
Brooklyn, New York, US	1	2007
Neenah, WI, US	1	2004