H05K 3/28

Applying non-metallic protective coatings

Official title: Applying non-metallic protective coatings {(H05K3/0091 takes precedence; methods for intermediate insulating layers for build-up multilayer circuits H05K3/4673)}

H05K3/28 (Applying non-metallic protective coatings) appears on 6,189 US grants and 6,417 published applications in this corpus.

Search patents in H05K
Granted patents
6,189
Published applications
6,417
Assignees
2,108
Inventors
13,391
Latest grant
6 Oct 2026

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H05K 3/28: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976140
1977100
1978190
1979110
1980150
1981310
1982150
1983240
1984230
1985270
1986320
1987430
1988480
1989410
1990630
1991780
1992810
1993790
1994950
1995840
1996700
1997860
19981310
19991180
2000910
200112458
2002135162
2003163191
2004171229
2005134288
2006135282
2007140279
2008152323
2009170320
2010183297
2011213209
2012222202
2013173201
2014162252
2015183300
2016201238
2017229267
2018230296
2019303293
2020283334
2021249283
2022209253
2023182257
2024202237
2025213197
202699169

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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