Inventor

Frank A. Ludwig

Inventor

Rancho Palos Verdes, CA, US

Overview

1976–2016

Patent span

General tagging of new technological developments

Primary field (CPC Y)

Patents· 51 as inventor

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

H01Mprimary

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy25%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution25%

G01NInvestigating or analysing materials by determining their chemical or physical properties16%

Y02PClimate change mitigation technologies in the production or processing of goods4%

A61JContainers specially adapted for medical or pharmaceutical purposes3%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers3%

C23CCoating metallic material3%

G09FDisplaying3%

G01RMeasuring electric variables2%

H01GCapacitors2%

PatentTitleYear

9,472,124'Safety label covering an individual packaging'2016 9,374,915'Backplane configuration for use in electronic crate systems'2016 8,978,890'Security label for protecting medicaments contained in an individual packaging'2015 8,865,283'Security label for securing medications retained in an individual packaging'2014 8,242,767'Detection of changes in an interval of time between optical or electrical signals'2012 8,223,911'Self-compensating drift-free high-frequency phase detector circuit'2012 5,755,954'Method of monitoring constituents in electroless plating baths'1998 5,753,101'Method of monitoring constituents in conversion coating baths'1998 5,470,669'Thermoelectrochemical system and method'1995 5,391,271'Method of monitoring acid concentration in plating baths'1995 5,336,380'Method of monitoring major constituents in plating baths'1994 5,324,400'Electrode preconditioning method for a plating bath monitoring process'1994 5,324,399'Method and system for monitoring quality of phosphate coating'1994 5,320,724'Method of monitoring constituents in plating baths'1994 5,315,162'Electrochemical synapses for artificial neural networks'1994 5,304,430'Acid-base concentration cell for electric power generation'1994 5,298,130'Method of monitoring major constituents in plating baths containing codepositing constituents'1994 5,298,132'Method for monitoring purification treatment in plating baths'1994 5,298,131'Method of monitoring metal ion content in plating baths'1994 5,296,123'In-tank electrochemical sensor'1994 5,296,124'Method of in-situ formation of a stable reference electrode for in-tank plating bath analysis'1994 5,290,423'Electrochemical interconnection'1994 5,287,060'In-tank conductivity sensor'1994 5,252,192'Electrolytic pump'1993 5,208,112'Thermally regenerated fuel cell'1993 5,087,534'Gas-recirculating electrode for electrochemical system'1992 4,977,044'Sodium-sulfur thermal battery'1990 4,939,469'Non-destructive method for evaluation of printed wiring boards'1990 4,865,925'Gas permeable electrode for electrochemical system'1989 4,810,596'Sulfuric acid thermoelectrochemical system and method'1989 4,766,522'Electrochemical capacitor'1988 4,738,904'Low temperature thermoelectrochemical system and method'1988 4,640,119'Utility pole tester'1987 4,631,116'Method of monitoring trace constituents in plating baths'1986 4,616,596'Electroless plating apparatus'1986 4,550,036'Electroless silver plating process and system'1985 4,248,943'Sodium sulfur container with chromium/chromium oxide coating'1981 4,166,156'Secondary battery or cell with pyrolytic graphite coated graphite current collector'1979 4,117,208'Electrical conversion device with ceramic electrode'1978 4,084,042'Secondary battery or cell with polysulfide wettable electrode #1'1978 4,084,041'Secondary battery or cell with polysulfide wettable electrode - #2'1978 4,048,394'Secondary battery or cell with vitreous carbon coated graphite current collector'1977 4,038,465'Sodium sulfur battery or cell with external storage'1977 4,002,806'Secondary battery or cell'1977 4,002,807'Alkali metal, sulfur battery or cell with single phase sulfur electrode'1977 3,994,745'Secondary battery with separate charge and discharge zones'1976 3,993,503'Secondary battery or cell with composite electrode'1976 3,985,575'Secondary battery or cell with dual electrode'1976 3,980,496'Energy conversion devices with improved electrode shapes'1976 3,966,492'Sodium sulfur battery or cell with improved ampere-hour capacity'1976 3,951,689'Alkali metal/sulfur cell with gas fuel cell electrode'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1981Patents assigned to FORD MOTOR CO (15)· patent assignee history

1976–1979Based in Southfield, MI, US· patent location history

1985–1995Patents assigned to HUGHES AIRCRAFT CO (27)· patent assignee history

1985–1998Based in Rancho Palos Verdes, CA, US· patent location history

1987Based in Richmond, MI, US· patent location history

2012–2016Patents assigned to LUDWIG FRANK (5)· patent assignee history

2012–2016Based in Norderstedt, DE· patent location history

2014–2016Patents assigned to DIELING MARCO (3)· patent assignee history

2014–2016Patents assigned to FAUBEL & CO NACHFOLGER GMBH (3)· patent assignee history

2014–2016Based in Melsungen, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HUGHES AIRCRAFT CO	27	1985–1995
FORD MOTOR CO	15	1976–1981
LUDWIG FRANKself	5	2012–2016
DIELING MARCO	3	2014–2016
FAUBEL & CO NACHFOLGER GMBH	3	2014–2016

Locations

Location	Patents	Span
Rancho Palos Verdes, California, US	29	1985–1998
Southfield, MI, US	14	1976–1979
Melsungen, DE	3	2014–2016
Norderstedt, DE	3	2012–2016
Richmond, MI, US	1	1987