LexDanaLexDanabeta
Inventor

John F. Lang

Inventor
Webster Groves, MO, US

Overview

5→
Patents
1976–2013
Patent span
Performing operations
Primary field (CPC B)

Patents· 5 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds25%
A61KPreparations for medical, dental or toiletry purposes13%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material13%
B23DPlaning13%
B44BMachines, apparatus or tools for artistic work, e.g. for sculpturing, guilloching, carving, branding, inlaying13%
C07DHeterocyclic compounds13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
8,501,753'Useful pharmaceutical salts of 7-[(3R, 4R)-3-Hydroxy-4-hydroxymethyl-pyrrolidin-1-ylmethyl]-3, 5-dihydro-pyrrolo [3, 2-D] pyrimidin-4-one'20135,254,776'Synthesis of bromobiphenyls'19935,138,099'Synthesis of fluorobenzaldehydes'19924,090,599'Method and apparatus for permanent marking of metal'19783,986,418'System for making cutouts and angular cuts in stepped siding'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Based in Plum Borough, PA, US· patent location history
1978Patents assigned to KELLY CALVIN E (1)· patent assignee history
1978Based in Homestead, PA, US· patent location history
1992–1993Patents assigned to MALLINCKRODT SPEC CHEM (2)· patent assignee history
1992–1993Based in Webster Groves, MO, US· patent location history
2013Patents assigned to BARTLEY GARY (1)· patent assignee history
2013Patents assigned to BIOCRYST PHARM INC (1)· patent assignee history
2013Patents assigned to CLEARY THOMAS (1)· patent assignee history
2013Based in Florence, SC, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MALLINCKRODT SPEC CHEM21992–1993
BARTLEY GARY12013
BIOCRYST PHARM INC12013
CLEARY THOMAS12013
KELLY CALVIN E11978
Locations
LocationPatentsSpan
Webster Groves, MO, US21992–1993
Florence, SC, US12013
Homestead, Pennsylvania, US11978
Plum Borough, Pennsylvania, US11976