Inventor
John A. Welsh
Inventor
Binghamton, NY, US
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Kprimary
H05KPrinted circuits35%
Y10TTechnical subjects covered by former us classification25%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1019%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices4%
C23CCoating metallic material2%
H01JElectric discharge tubes or discharge lamps2%
H01RElectrically-conductive connections2%
H05HPlasma technique2%
H10DInorganic electric semiconductor devices2%
PatentTitleYear
7,353,590'Method of forming printed circuit card'20086,986,198'Method of forming printed circuit card'20066,750,405'Two signal one power plane circuit board'20046,524,654'Method of controlling the spread of an adhesive on a circuitized organic substrate'20036,488,198'Wire bonding method and apparatus'20026,453,549'Method of filling plated through holes'20026,432,182'Treatment solution for reducing adhesive resin bleed'20026,274,291'Method of reducing defects in I/C card and resulting card'20016,204,453'Two signal one power plane circuit board'20016,201,194'Multi-voltage plane, multi-signal plane circuit card with photoimageable dielectric'20016,099,959'Method of controlling the spread of an adhesive on a circuitized organic substrate'20006,009,620'Method of making a printed circuit board having filled holes'20005,114,518'Method of making multilayer circuit boards having conformal Insulating layers'19924,971,715'Phenolic-free stripping composition and use thereof'19904,918,574'Multilayer circuit board with reduced susceptability to shorts caused by trapped impurities'19904,810,326'Interlaminate adhesion between polymeric materials and electrolytic copper surfaces'19894,618,477'Uniform plasma for drill smear removal reactor'19864,599,134'Plasma etching with tracer'19864,431,685'Decreasing plated metal defects'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–2008Patents assigned to IBM (19)· patent assignee history
1984–2008Based in Binghamton, NY, US· patent location history
2000–2001Based in Vestal, NY, US· patent location history
2002Based in Easley, SC, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 19 | 1984–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Binghamton, New York, US | 15 | 1984–2008 |
| Easley, SC, US | 2 | 2002 |
| Vestal, New York, US | 2 | 2000–2001 |