| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 7 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | General building constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tibby Leonard | 10 |
| #2 | Smart Arthur | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB979847A | Suspended ceilings | |
| GB933787A | Suspended ceilings | |
| GB875300A | Improvements in or relating to ceilings | |
| GB891911A | Improvements in or relating to ceilings | |
| GB880226A | Improvements in or relating to the construction of ceilings | |
| GB871816A | Improvements in and relating to the construction of ceilings | |
| GB870849A | Improvements in and relating to ceilings | |
| CA642849A | Construction of ceilings | |
| CA684254A | Construction of ceilings | |
| CA670667A | Ceilings | |
| CA679370A | Ceilings | |
| CA678444A | Ceilings |