Inventor

MICHAEL CRACRAFT

Inventor

Overview

3→

Patents

2021–2025

Patent span

Chemistry

Primary field (CPC C)

Patents· 3 as inventor

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

C01Gprimary

C01GCompounds containing metals not covered by subclasses c01d or c01f17%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds17%

C09KMaterials for miscellaneous applications, not provided for elsewhere17%

G02BOptical elements, systems or apparatus17%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%

G06FElectric digital data processing17%

PatentTitleYear

12,386,235Electrochromic optical switch2025 11,295,037Data scanning and removal for removable storage device2022 11,187,858Electrically-controlled fiber-optic switching system2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2025Patents assigned to IBM (3)· patent assignee history

2021–2025Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
IBM	3	2021–2025

Locations

Location	Patents	Span
US	3	2021–2025