Inventor

Rudolf Novotny

Inventor
Duesseldorf, DE

Overview

12→
Patents
1977–2012
Patent span
Chemistry
Primary field (CPC C)

Patents· 12 as inventor

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

C01Bprimary
C01BNon-metallic elements30%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
C04BLime, magnesia9%
B01DSeparation4%
B28CPreparing clay4%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals4%
C03BManufacture, shaping, or supplementary processes4%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
C23FNon-mechanical removal of metallic material from surface4%
E02DFoundations4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to BYRON JACKSON INC (1)· patent assignee history
1977–1983Based in Arlington, TX, US· patent location history
1983Patents assigned to BJ HUGHES INC (1)· patent assignee history
1985–1993Patents assigned to HENKEL KGAA (9)· patent assignee history
1985–1993Based in Duesseldorf, DE· patent location history
1985Based in Dusseldorf, DE· patent location history
2012Patents assigned to BAKER HUGHES INC (1)· patent assignee history
2012Patents assigned to CLARK ROBERT L (1)· patent assignee history
2012Based in Montgomery, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HENKEL KGAA91985–1993
BAKER HUGHES INC12012
BJ HUGHES INC11983
BYRON JACKSON INC11977
CLARK ROBERT L12012
Locations
LocationPatentsSpan
Duesseldorf, DE71985–1993
Dusseldorf, DE21985
Arlington, Texas, US21977–1983
Montgomery, Texas, US12012