Inventor

David Alan Carhart

Inventor
Cary, IL, US

Overview

8→
Patents
2015–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 8 as inventor

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

C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge29%
E03CDomestic plumbing installations for fresh water or waste water29%
B41JTypewriters14%
G09BEducational or demonstration appliances14%
A61BDiagnosis7%
LOC287%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015Patents assigned to CARHART DAVID A (2)· patent assignee history
2015–2018Patents assigned to PERKINS SCHOOL FOR THE BLIND (2)· patent assignee history
2015–2021Based in Cary, IL, US· patent location history
2018Patents assigned to CARHART DAVID (1)· patent assignee history
2018Patents assigned to CAVADA GIL (1)· patent assignee history
2021Patents assigned to ELKAY MFG CO (4)· patent assignee history
2021Based in Cary, NC, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ELKAY MFG CO42021
CARHART DAVID Aself22015
PERKINS SCHOOL FOR THE BLIND22015–2018
CARHART DAVIDself12018
CAVADA GIL12018
Locations
LocationPatentsSpan
Cary, Illinois, US72015–2021
Cary, NC, US12021