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Inventor

THOMAS R. KARKKAINEN

Inventor
US

Overview

2→
Patents
2023–2025
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds25%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments25%
G02BOptical elements, systems or apparatus25%
G02CSpectacles25%
PatentTitleYear
12,481,173Multifocal contact lens displaying improved vision attributes202511,543,683Multifocal contact lens displaying improved vision attributes2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023–2025Patents assigned to JOHNSON & JOHNSON VISION CARE (2)· patent assignee history
2023–2025Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JOHNSON & JOHNSON VISION CARE22023–2025
Locations
LocationPatentsSpan
US22023–2025