Inventor

Stephen A. Chapman

Inventor

Pasadena, CA, US

Overview

1979–2021

Patent span

Physics

Primary field (CPC G)

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

G01Nprimary

G01NInvestigating or analysing materials by determining their chemical or physical properties20%

A61BDiagnosis10%

A61MDevices for introducing media into, or onto, the body10%

C12NMicroorganisms or enzymes10%

C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms10%

F16DCouplings for transmitting rotation10%

G08BSignalling systems, e.g. personal calling systems10%

H04LTransmission of digital information, e.g. telegraphic communication10%

Y10TTechnical subjects covered by former us classification10%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1979–2017Patents assigned to CHAPMAN STEPHEN A (2)· patent assignee history

1979Based in Front Royal, VA, US· patent location history

2007Patents assigned to DELTA T ENGINEERING LLC (1)· patent assignee history

2007Based in New York, NY, US· patent location history

2017Patents assigned to CALIFORNIA INST OF TECHN (1)· patent assignee history

2017–2018Based in Pasadena, CA, US· patent location history

2018Patents assigned to DETON CORP (1)· patent assignee history

2021Patents assigned to CHAPMAN STEVE (1)· patent assignee history

2021Based in Wellington, NZ· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations