The broken lines in the drawings depict unclaimed environmental subject matter.
The broken lines in the drawings depict unclaimed environmental subject matter.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2017-007478 | Apr 2017 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 1418837 | Sears | Jun 1922 | A |
| 1461666 | Larsh | Jul 1923 | A |
| 1494659 | Woodward | May 1924 | A |
| 1521329 | Sears | Dec 1924 | A |
| 1536727 | Randolph | May 1925 | A |
| 1961885 | Laganas | Jun 1934 | A |
| 1975581 | Klein | Oct 1934 | A |
| 1981596 | Jackson | Nov 1934 | A |
| 2002446 | Carlton | May 1935 | A |
| 2034741 | Brandt | Mar 1936 | A |
| 2132861 | Perazzoli | Oct 1938 | A |
| 2380055 | Linden | Jul 1945 | A |
| 2381657 | Eksergian | Aug 1945 | A |
| 2634134 | Dietz | Apr 1953 | A |
| 2656760 | Bowerman | Oct 1953 | A |
| 2682933 | Hoelscher | Jul 1954 | A |
| 2694820 | Fitzgerald | Nov 1954 | A |
| 2702055 | Lundgren | Feb 1955 | A |
| 3604668 | Bernhardt | Sep 1971 | A |
| 3765812 | Sugiyama | Oct 1973 | A |
| 3837606 | Hikai | Sep 1974 | A |
| 3974565 | Ellis | Aug 1976 | A |
| 3983945 | Hart | Oct 1976 | A |
| 4017236 | Penkman | Apr 1977 | A |
| D252609 | Wolkert | Aug 1979 | S |
| 4499933 | Thompson | Feb 1985 | A |
| 4652363 | Miller | Mar 1987 | A |
| 5191822 | Borzym | Mar 1993 | A |
| 5249769 | Griek | Oct 1993 | A |
| 5644964 | Price | Jul 1997 | A |
| D415181 | Rogers | Oct 1999 | S |
| D415507 | Rogers | Oct 1999 | S |
| D424302 | Price, Jr. | May 2000 | S |
| D426066 | Price, Jr. | Jun 2000 | S |
| 6244147 | Pierce | Jun 2001 | B1 |
| D464067 | Rogers | Oct 2002 | S |
| 6575213 | Houk | Jun 2003 | B1 |
| 7255790 | Rogers | Aug 2007 | B2 |
| 7404491 | Hakola | Jul 2008 | B2 |
| 7794515 | Oh | Sep 2010 | B2 |
| D736585 | Furey | Aug 2015 | S |
| D736586 | Fukui | Aug 2015 | S |
| D827405 | Chun | Sep 2018 | S |
| 20060065805 | Barton | Mar 2006 | A1 |
| 20090126546 | Chiang | May 2009 | A1 |
| 20110167975 | Boudreault | Jul 2011 | A1 |
| 20120235337 | Xu | Sep 2012 | A1 |
| 20130221594 | Wen | Aug 2013 | A1 |
| 20140117605 | Chen | May 2014 | A1 |
| 20150015015 | Li | Jan 2015 | A1 |
| 20150021948 | Xiao | Jan 2015 | A1 |
| 20160304223 | Xie | Oct 2016 | A1 |
| 20170080538 | Belotti | Mar 2017 | A1 |
| 20170291235 | Drake, Jr. | Oct 2017 | A1 |