H01H 2207/044
Resist layer
H01H2207/044 (Resist layer) appears on 8 US grants and 3 published applications in this corpus.
Search patents in H01H- Granted patents
- 8
- Published applications
- 3
- Assignees
- 8
- Inventors
- 25
- Latest grant
- 6 Mar 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Membrane switch, method for manufacturing membrane switch, and contact switch6 Mar 2007US 7,186,938 B2Polymatech Co., Ltd.
- Compact key structure24 Apr 2001US 6,222,527 B1Silitek Corporation
- Printed wiring board with grounding lines arranged between wiring lines6 Jun 2000US 6,072,126 AAlps Electronics Co., Ltd.
- Contact switch device27 Sep 1994US 5,350,890 AGould Instrument Systems, Inc.
- Impact resistant layer for a circuit board5 May 1992US 5,111,364 ABrother Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Data entry keyboard16US 4,701,579 ABrother Kogyo Kabushiki Kaisha · 1987
- Contact switch device16US 5,350,890 AGould Instrument Systems, Inc. · 1994
- Membrane switch element with coated spacer layer13US 4,795,861 AW. H. Brady Co. · 1989
- Printed wiring board with grounding lines arranged between wiring lines12US 6,072,126 AAlps Electronics Co., Ltd. · 2000
- Impact resistant layer for a circuit board8US 5,111,364 ABrother Kogyo Kabushiki Kaisha · 1992