Inventor

Robert M. Franz

Inventor
Ottumwa, IA, US

Overview

5→
Patents
1986–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 5 as inventor

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

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes30%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations10%
E01CConstruction of, or surfaces for, roads, sports grounds, or the like10%
E02FDredging10%
E04BGeneral building constructions10%
E21BEarth or rock drilling10%
E21CMining or quarrying10%
G01NInvestigating or analysing materials by determining their chemical or physical properties10%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986Patents assigned to UPJOHN CO (2)· patent assignee history
1986Based in Otsego, MI, US· patent location history
1986Based in Allegan, MI, US· patent location history
1989Patents assigned to FRANZ ROBERT M (1)· patent assignee history
1989Based in Raleigh, NC, US· patent location history
2006Patents assigned to FRANZ ROBERT MICHAEL (1)· patent assignee history
2006Based in Lakewood, CO, US· patent location history
2021Patents assigned to VERMEER MFG CO (1)· patent assignee history
2021Based in Ottumwa, IA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UPJOHN CO21986
FRANZ ROBERT Mself11989
FRANZ ROBERT MICHAELself12006
VERMEER MFG CO12021
Locations
LocationPatentsSpan
Ottumwa, IA, US12021
Lakewood, CO, US12006
Raleigh, NC, US11989
Otsego, MI, US11986
Allegan, MI, US11986