GEORGE WILLIAM CHRISTIANS has a total of 11 patent applications. Its first patent ever was published in 1927. It filed its patents most often in Germany and United Kingdom. Its main competitors in its focus markets civil engineering are SUBWAY ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GROUP CO LTD, CCTE3 INFRASTRUCTURE CONSTRUCTION INVEST CO LTD and ERCHU CO LTD OF CHINA RAILWAY TUNNEL GROUP.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Foundations and excavations | |
| #3 | Earth drilling |
| Publication | Filing date | Title |
|---|---|---|
| GB275551A | Improvements in or relating to the sealing of crevices in rock and like formations | |
| GB277609A | Improvements in or relating to means for sealing crevices in rock and like formations |