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Inventor

William Bonfield

Inventor
Welwyn, GB

Overview

13→
Patents
1989–2015
Patent span
Human necessities
Primary field (CPC A)

Patents· 13 as inventor

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

A61Lprimary
A61LMethods or apparatus for sterilising materials or objects in general28%
A61FFilters implantable into blood vessels19%
C01BNon-metallic elements8%
C03CChemical composition of glasses, glazes or vitreous enamels8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
A61KPreparations for medical, dental or toiletry purposes6%
C04BLime, magnesia6%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%
C08LCompositions of macromolecular compounds6%
A61CDentistry3%
PatentTitleYear
9,044,528'Article and method of surface treatment of an article'20158,613,876'Foamed ceramics'20138,318,902'Biomaterial'20127,780,994'Composite biomaterials comprising calcium phospate materials, collagen and glycosaminoglycans'20107,541,049'Bioactive and biodegradable composites of polymers and ceramics or glasses and method to manufacture such composites'20096,585,946'Process for the preparation of magnesium and carbonate substituted hydroxyapatite'20036,582,672'Method for the preparation of carbonated hydroxyapatite compositions'20036,312,468'Silicon-substituted apatites and process for the preparation thereof'20015,962,549'Bioactive composite material for repair of hard and soft tissues'19995,728,753'Bioactive composite material for repair of hard and soft tissues'19985,470,803'Method for the preparation of carbonated hydroxyapatite compositions'19955,017,627'Composite material for use in orthopaedics'19914,828,564'Endoprosthetic bone joint devices'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Patents assigned to NAT RES DEV (2)· patent assignee history
1989–2009Based in Welwyn, GB· patent location history
1998–1999Patents assigned to UNIV FLORIDA (2)· patent assignee history
1999–2015Based in Herts, GB· patent location history
2003–2013Patents assigned to APATECH LTD (3)· patent assignee history
2010–2012Patents assigned to CAMBRIDGE ENTPR LTD (2)· patent assignee history
2010–2012Based in Cambridge, GB· patent location history
2012–2015Patents assigned to BONFIELD WILLIAM (3)· patent assignee history
2013Based in Hertfordshire, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
APATECH LTD32003–2013
BONFIELD WILLIAMself32012–2015
CAMBRIDGE ENTPR LTD22010–2012
NAT RES DEV21989–1991
UNIV FLORIDA21998–1999
Locations
LocationPatentsSpan
Welwyn, GB71989–2009
Herts, GB31999–2015
Cambridge, GB22010–2012
Hertfordshire, GB12013