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Inventor

William B. Kerfoot

Inventor
Falmouth, MA, US

Overview

56→
Patents
1978–2017
Patent span
Performing operations
Primary field (CPC B)

Patents· 56 as inventor

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

B09Cprimary
B09CReclamation of contaminated soil24%
C02FTreatment of water, waste water, sewage, or sludge22%
B01FMixing, e.g. dissolving, emulsifying or dispersing16%
E21BEarth or rock drilling10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management8%
C09KMaterials for miscellaneous applications, not provided for elsewhere2%
C10GCracking hydrocarbon oils2%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
Y02ATechnologies for adaptation to climate change2%
PatentTitleYear
9,694,401'Method and apparatus for treating perfluoroalkyl compounds'20179,266,073'Treatment for recycling fracture water—gas and oil recovery in shale deposits'20168,906,241'Enhanced reactive ozone'20148,771,507'Directional microporous diffuser and directional sparging'20148,678,354'Nano-bubble generator and treatments'20148,573,303'Treatment for recycling fracture water—gas and oil recovery in shale deposits'20138,557,110'Groundwater and subsurface remediation'20138,302,939'Soil and water remediation system and method'20128,225,856'Treatment for recycling fracture water—gas and oil recovery in shale deposits'2012RE043350'Microporous diffusion apparatus'20128,016,041'Treatment for recycling fracture water gas and oil recovery in shale deposits'20117,666,316'Permanganate-coated ozone for groundwater and soil treatment with in-situ oxidation'20107,666,313'Groundwater and subsurface remediation'20107,661,657'Deep well sparging'20107,651,611'Directional microporous diffuser and directional sparging'20107,648,640'Directional microporous diffuser and directional sparging'20107,645,380'Microporous diffusion apparatus'20107,645,384'Environmental remediation method using ozonophilic bacteria within a liquid coating of bubbles'20107,621,696'Directional microporous diffuser and directional sparging'20097,572,368'Water treatment apparatus'20097,569,140'Directional spargewell system'20097,547,388'Superoxidant poiser for groundwater and soil treatment with in-situ oxidation-reduction and acidity-basicity adjustment'20097,537,706'Microporous diffusion apparatus'20097,451,965'Deep well sparging'20087,442,313'Environmental remediation method and system'20087,401,767'Directional microporous diffuser and directional sparging'20087,326,002'Sparge broadcasting in fracture rock'20087,300,039'Environmental remediation method and apparatus'20077,264,747'Coated microbubbles for treating an aquifer or soil formations'20077,213,642'Multi-fluid sparging'20077,156,984'Environmental remediation apparatus'20077,131,638'Deep well sparging'20067,033,492'Groundwater and subsurface remediation'20067,022,241'Gas-gas-water treatment system for groundwater and soil remediation'20066,984,329'Coated microbubbles for treating an aquifer or soil formations'20066,913,251'Deep well sparging'20056,872,318'Microporous diffusion apparatus'20056,827,861'Gas-gas-water treatment system for groundwater and soil remediation'20046,817,119'Apparatus and methods for subsidence deepening'20046,805,798'Environmental remediation method and apparatus'20046,780,329'Treating an aquifer or soil formations'20046,596,161'Laminated microporous diffuser'20036,582,611'Groundwater and subsurface remediation'20036,447,676'Springbox for water remediation'20026,436,285'Laminated microporous diffuser'20026,312,605'Gas-gas-water treatment for groundwater and soil remediation'20016,306,296'Groundwater and soil remediation with microporous diffusion apparatus'20016,284,143'Microporous diffusion apparatus'20016,083,407'Microporous diffusion apparatus'20005,855,775'Microporous diffusion apparatus'19995,428,908'Apparatus and method for subsidence deepening'19954,804,050'Method of underground fluid sampling'19894,484,626'Pneumatic packer'19844,391,137'Groundwater flow meter'19834,270,922'Integrating corrosion monitor'19814,112,741'Scanning apparatus for septic effluents'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to ENVIRONMENTAL DEVICES CORP (1)· patent assignee history
1978–2017Based in Falmouth, MA, US· patent location history
1981–1989Patents assigned to KV ASSOC INC (4)· patent assignee history
2006–2016Patents assigned to KERFOOT WILLIAM B (20)· patent assignee history
2008–2014Patents assigned to THINKVILLAGE KERFOOT LLC (16)· patent assignee history
2009–2012Patents assigned to THINK VILLAGE KERFOOT LLC (2)· patent assignee history
2012Based in Faimouth, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KERFOOT WILLIAM Bself202006–2016
THINKVILLAGE KERFOOT LLC162008–2014
KV ASSOC INC41981–1989
THINK VILLAGE KERFOOT LLC22009–2012
ENVIRONMENTAL DEVICES CORP11978
Locations
LocationPatentsSpan
Falmouth, Massachusetts, US551978–2017
Faimouth, Massachusetts, US12012