Inventor

Janet Preston

Inventor

St. Austell, GB

Overview

1999–2020

Patent span

Chemistry

Primary field (CPC C)

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

D21Hprimary

D21HPulp compositions27%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds13%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties13%

B41MPrinting, duplicating, marking, or copying processes7%

C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals7%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients7%

C09DCoating compositions, e.g. paints, varnishes or lacquers7%

G03GElectrography7%

Y02PClimate change mitigation technologies in the production or processing of goods7%

Y10TTechnical subjects covered by former us classification7%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1999Patents assigned to ECC INTERNATINAL LTD (1)· patent assignee history

1999–2001Based in Cornwall, GB· patent location history

2001–2017Patents assigned to IMERYS MINERALS LTD (2)· patent assignee history

2017Patents assigned to O'NEILL GRAHAM (1)· patent assignee history

2017Patents assigned to PHIPPS JONATHAN (1)· patent assignee history

2017–2020Based in St. Austell, GB· patent location history

2020Patents assigned to IMERYS USA INC (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations

Location	Patents	Span
St. Austell, GB	2	2017–2020
Cornwall, GB	2	1999–2001