Inventor
Tracy M. Ragan
Inventor
Warrenton, MO, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B24Bprimary
B24BMachines, devices, or processes for grinding or polishing11%
B28DWorking stone or stone-like materials9%
B01DSeparation7%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids7%
B03DFlotation7%
B08BCleaning in general7%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling7%
C01BNon-metallic elements7%
C10MLubricating compositions7%
H01LSemiconductor devices7%
PatentTitleYear
10,811,307Polishing slurries for polishing semiconductor wafers202010,699,908Methods for processing semiconductor wafers having a polycrystalline finish202010,128,146Semiconductor substrate polishing methods and slurries and methods for manufacturing silicon on insulator structures20188,528,740'Methods to recover and purify silicon particles from saw kerf'20138,505,733'Methods to slice a silicon ingot'20138,231,006'Methods to recover and purify silicon particles from saw kerf'20127,008,308'Wafer carrier'20066,112,738'Method of slicing silicon wafers for laser marking'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2020Based in Warrenton, MO, US· patent location history
2012–2013Patents assigned to GRABBE ALEXIS (3)· patent assignee history
2012–2013Patents assigned to RAGAN TRACY M (3)· patent assignee history
2012–2013Patents assigned to MEMC SINGAPORE PTE LTD (2)· patent assignee history
2018–2020Patents assigned to GLOBALWAFERS CO LTD (3)· patent assignee history
2020Patents assigned to GLOBAL WAFERS CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GLOBALWAFERS CO LTD | 3 | 2018–2020 |
| GRABBE ALEXIS | 3 | 2012–2013 |
| RAGAN TRACY Mself | 3 | 2012–2013 |
| MEMC SINGAPORE PTE LTD | 2 | 2012–2013 |
| GLOBAL WAFERS CO LTD | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Warrenton, MO, US | 8 | 2000–2020 |