D21H 17/63
Inorganic compounds
D21H17/63 (Inorganic compounds) appears on 1,686 US grants and 1,633 published applications in this corpus.
Search patents in D21H- Granted patents
- 1,686
- Published applications
- 1,633
- Assignees
- 768
- Inventors
- 3,457
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 10 | 0 |
| 1978 | 10 | 0 |
| 1979 | 10 | 0 |
| 1980 | 13 | 0 |
| 1981 | 16 | 0 |
| 1982 | 10 | 0 |
| 1983 | 18 | 0 |
| 1984 | 14 | 0 |
| 1985 | 15 | 0 |
| 1986 | 19 | 0 |
| 1987 | 11 | 0 |
| 1988 | 31 | 0 |
| 1989 | 32 | 0 |
| 1990 | 35 | 0 |
| 1991 | 22 | 0 |
| 1992 | 40 | 0 |
| 1993 | 36 | 0 |
| 1994 | 23 | 0 |
| 1995 | 15 | 0 |
| 1996 | 36 | 0 |
| 1997 | 46 | 0 |
| 1998 | 41 | 0 |
| 1999 | 37 | 0 |
| 2000 | 42 | 0 |
| 2001 | 41 | 12 |
| 2002 | 46 | 39 |
| 2003 | 34 | 73 |
| 2004 | 43 | 66 |
| 2005 | 21 | 62 |
| 2006 | 23 | 62 |
| 2007 | 31 | 56 |
| 2008 | 13 | 51 |
| 2009 | 21 | 55 |
| 2010 | 32 | 73 |
| 2011 | 39 | 62 |
| 2012 | 50 | 56 |
| 2013 | 50 | 85 |
| 2014 | 62 | 70 |
| 2015 | 47 | 127 |
| 2016 | 46 | 75 |
| 2017 | 58 | 75 |
| 2018 | 67 | 76 |
| 2019 | 59 | 81 |
| 2020 | 69 | 63 |
| 2021 | 61 | 76 |
| 2022 | 49 | 65 |
| 2023 | 38 | 58 |
| 2024 | 38 | 45 |
| 2025 | 34 | 40 |
| 2026 | 21 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Moisture/oil resistant composite materials29 Sep 2026US 12,747,536 B2World Centric
- Polymer compositions and coatings22 Sep 2026US 12,742,090 B2The Penn State Research Foundation
- Method for producing wet-running friction paper28 Jul 2026US 12,692,663 B2Schaeffler Technologies AG & Co. KG
- Method of controlling enzymatic activities and tools related thereto21 Jul 2026US 12,686,971 B2Kemira Oyj
- Process for producing and using fibrillated biodegradable microfibers7 Jul 2026US 12,674,278 B2
- Ceiling basemat water reduction through strategic use of pressing and vacuuming17 Sep 2026US 2026/0275636 A1USG Interiors, Inc.
- Microbial Cellulose-Based Paper3 Sep 2026US 2026/0258605 A1Treeless AG
- Layered structure27 Aug 2026US 2026/0249600 A1Camm Solutions (Spain) R&D, S.L.U.
- Process for producing rigid cellulosic product20 Aug 2026US 2026/0243023 A1Honext Material, Sl
- Dual emulsification of alkenyl succinic anhydride to improve sizing performance and stability20 Aug 2026US 2026/0243024 A1Kemira Oyj
Most cited
By later US patents
- Production of paper and paperboard198US 4,753,710 AAllied Colloids Limited · 1988
- Fibrous structures containing immobilized particulate matter181US 5,486,410 AHoechst Celanese Corporation · 1996
- Dispersible nonwoven fabric and method of making same166US 5,935,880 A1999
- Papermaking and products made thereby159US 4,388,150 AEKA Aktiebolag · 1983
- Reaction of carbon black with diazonium salts, resultant carbon black products and their uses157US 5,851,280 ACabot Corporation · 1998