B29C 33/3878
Used as masters for making successive impressions
Official title: {used as masters for making successive impressions}
B29C33/3878 (Used as masters for making successive impressions) appears on 166 US grants and 180 published applications in this corpus.
Search patents in B29C- Granted patents
- 166
- Published applications
- 180
- Assignees
- 132
- Inventors
- 424
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 4 |
| 2004 | 3 | 4 |
| 2005 | 3 | 6 |
| 2006 | 1 | 10 |
| 2007 | 4 | 6 |
| 2008 | 3 | 15 |
| 2009 | 1 | 7 |
| 2010 | 6 | 10 |
| 2011 | 5 | 10 |
| 2012 | 5 | 14 |
| 2013 | 6 | 8 |
| 2014 | 5 | 5 |
| 2015 | 7 | 11 |
| 2016 | 8 | 5 |
| 2017 | 4 | 9 |
| 2018 | 6 | 10 |
| 2019 | 9 | 10 |
| 2020 | 8 | 10 |
| 2021 | 3 | 8 |
| 2022 | 6 | 4 |
| 2023 | 8 | 5 |
| 2024 | 6 | 5 |
| 2025 | 4 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pyramidal microneedles with enhanced drug loading capacity and method for manufacturing14 Jul 2026US 12,678,607 B2
- Method for fabricating microstructured inserts for injection molding16 Jun 2026US 12,654,373 B2Essilor International
- Manufacturing method of master template and stamp of grating of diffractive optic element, master template and stamp13 Jan 2026US 12,521,916 B2Dispelix Oy
- Pacifier fabrication method1 Jul 2025US 12,343,313 B2
- Methods and systems for making tilted and curved structures with high aspect ratios17 Jun 2025US 12,330,347 B2Texas Tech University System
- Stamps for micro-transfer-printing with curved stamp post ends26 Jun 2025US 2025/0208502 A1X-Celeprint Limited
- Microneedle arrays with undercut features for cutaneous and non-cutaneous drug delivery15 May 2025US 2025/0152929 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Transdermal drug delivery patch and manufacturing method thereof3 Oct 2024US 2024/0325702 A1Postech Academy-Industry Foundation
- Method for fabricating microstructured inserts for injection molding26 Sep 2024US 2024/0316846 A1Essilor International
- Method for Manufacturing a Mold Element for the Production of Micro-arrays and a Mold Element14 Mar 2024US 2024/0083078 A1LTS Lohmann Therapie-Systeme AG
Most cited
By later US patents
- Plano-convex base sheet for retroreflective articles and method for making same134US 5,254,390 AMinnesota Mining and Manufacturing Company · 1993
- Reshapable prosthesis95US 4,704,129 A1987
- Biomimetic dry adhesives and methods of production therefor95US 8,703,032 B2Simon Fraser University · 2014
- Method of making a microlens array and mold88US 5,300,263 AMinnesota Mining and Manufacturing Company · 1994
- Method for fabricating a hearing aid housing77US 5,531,954 AResound Corporation · 1996