Inventor

Steven R. Freebersyser

Inventor
Florissant, MO, US

Overview

5→
Patents
1982–2014
Patent span
Human necessities
Primary field (CPC A)

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 purposes27%
A01NPreservation of bodies of humans or animals or plants or parts thereof18%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for9%
A23PShaping or working of foodstuffs, not fully covered by a single other subclass9%
A23VIndexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation9%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations9%
C09KMaterials for miscellaneous applications, not provided for elsewhere9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1986Patents assigned to MALLINCKRODT INC (3)· patent assignee history
1982–2014Based in Florissant, MO, US· patent location history
1994Patents assigned to MALLINCKRODT SPEC CHEM (1)· patent assignee history
1994Based in St. Louis, MO, US· patent location history
2014Patents assigned to FREEBERSYSER STEVEN R (1)· patent assignee history
2014Patents assigned to LEVINSON R SAUL (1)· patent assignee history
2014Patents assigned to PARTICLE DYNAMICS INTERNATIONAL LLC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MALLINCKRODT INC31982–1986
FREEBERSYSER STEVEN Rself12014
LEVINSON R SAUL12014
MALLINCKRODT SPEC CHEM11994
PARTICLE DYNAMICS INTERNATIONAL LLC12014
Locations
LocationPatentsSpan
Florissant, MO, US41982–2014
St. Louis, MO, US11994