C04B 16/0633
Polypropylene
Official title: {Polypropylene}
C04B16/0633 (Polypropylene) appears on 106 US grants and 144 published applications in this corpus.
Search patents in C04B- Granted patents
- 106
- Published applications
- 144
- Assignees
- 110
- Inventors
- 372
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 5 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 5 |
| 2010 | 2 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 5 | 8 |
| 2015 | 1 | 8 |
| 2016 | 5 | 4 |
| 2017 | 2 | 13 |
| 2018 | 10 | 11 |
| 2019 | 20 | 18 |
| 2020 | 7 | 8 |
| 2021 | 4 | 8 |
| 2022 | 9 | 11 |
| 2023 | 10 | 12 |
| 2024 | 8 | 12 |
| 2025 | 10 | 6 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Accelerating portland cement and sand mixtures with dry calcium chloride6 Oct 2026US 12,753,117 B1J&P Invesco LLC
- Double-liquid grouting slurry, its technology and application for super large diameter underwater shield engineering under high water pressure condition22 Sep 2026US 12,741,910 B2China Railway 14th Bureau Group Corporation Limited
- Concrete reinforcement member1 Sep 2026US 12,723,409 B2Afyon Cimento Sanayi Turk Anonim Sirketi
- Surface crack filler compound5 May 2026US 12,617,723 B2Logical Resource, Inc.
- Compositions and methods of utilizing recycled glass in backfill compositions7 Apr 2026US 12,595,207 B2J&P Invesco LLC
- Rapid-set construction material for 3d printing of sustainable infrastructure8 Oct 2026US 2026/0307293 A1Oregon State University
- Hardened body of hydraulic composition8 Oct 2026US 2026/0308056 A1Kuraray Co., Ltd.
- Char bricks and methods of making char bricks3 Sep 2026US 2026/0257967 A1
- Surface crack filler compound30 Jul 2026US 2026/0217606 A1Logical Resource, Inc.
- Gypsum board having oxidized modified cellulose fibers30 Apr 2026US 2026/0116046 A1Georgia-Pacific Gypsum LLC
Most cited
By later US patents
- Polypropylene fiber for reinforcement of matrix materials41US 7,704,595 B2Innegrity, LLC · 2010
- Fibre reinforced shaped solid articles24US 5,338,357 APolyfibre S.A. · 1994
- Cement and concrete with reinforced material15US 8,906,156 B2Calera Corporation · 2014
- Fiber for reinforcing cement, and cured cement produced using same14US 9,249,052 B2Daiwabo Holdings Co., Ltd. · 2016
- Device for displaying other ship targets12US 7,830,275 B2Furuno Electric Co., Ltd. · 2010