Inventor

Charles K. Marschke

Inventor
Kalamazoo, MI, US

Overview

9→
Patents
1983–2004
Patent span
Chemistry
Primary field (CPC C)

Patents· 9 as inventor

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

Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests28%
G01NInvestigating or analysing materials by determining their chemical or physical properties21%
C12NMicroorganisms or enzymes10%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture10%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms10%
C12RIndexing scheme associated with subclasses c12c - c12q, relating to microorganisms10%
Y10TTechnical subjects covered by former us classification10%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2004Patents assigned to UPJOHN CO (9)· patent assignee history
1983–1984Based in Portage, MI, US· patent location history
2001–2004Based in Kalamazoo, MI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UPJOHN CO91983–2004
Locations
LocationPatentsSpan
Kalamazoo, MI, US62001–2004
Portage, MI, US31983–1984