Inventor

Robert A. Ritter

Inventor
Calgary, CA

Overview

20→
Patents
1981–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 20 as inventor

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

B01Dprimary
B01DSeparation10%
B09CReclamation of contaminated soil8%
C09KMaterials for miscellaneous applications, not provided for elsewhere8%
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents6%
Y10TTechnical subjects covered by former us classification6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
B29CShaping or joining of plastics4%
B29LIndexing scheme associated with subclass b29c, relating to particular articles4%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes4%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1994Patents assigned to RITTER ROBERT A (5)· patent assignee history
1981–1991Based in Calgary, CA· patent location history
1985–1986Patents assigned to ALBERTA OIL SANDS TECH (3)· patent assignee history
1994–1996Based in Vancouver, British Columbia, CA· patent location history
2012–2013Patents assigned to RITTER ROBERT (3)· patent assignee history
2012–2013Patents assigned to JEAN DOMINIQUE (2)· patent assignee history
2012–2013Patents assigned to JONES GRAHAM (2)· patent assignee history
2013Based in Marina Del Rey, CA, US· patent location history
2015Based in Berg, DE· patent location history
2021Based in Clear Lake, IA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RITTER ROBERT Aself51981–1994
ALBERTA OIL SANDS TECH31985–1986
RITTER ROBERTself32012–2013
JEAN DOMINIQUE22012–2013
JONES GRAHAM22012–2013
Locations
LocationPatentsSpan
Calgary, CA71981–1991
Vancouver, British Columbia, CA51994–1996
Clear Lake, IA, US12021
Berg, DE12015
Marina Del Rey, California, US12013