Schenk (right), however, faces a daunting task as she will be up against world No. 2 Wang Xin in the semi-finals. The other semi-final will be between Li Xuerui and Gu Juan.
In the quarter-finals, Schenk was taken the distance by world junior champion Inthanon Ratchanok before prevailing 21-17, 16-21, 21-10.
Wang Xin was also taken to three games, losing the first to fifth seed Sung Ji Hyun before coming back to win 19-21, 21-18, 21-18.
Surprised semi-finalist Gu Juan of Singapore crushed Indonesian qualifier Lindaweni Fanetri 21-17, 21-19, while Li Xuerui continued her devastating form in the tournament when she hammered Chan Tsz Ka 21-10, 21-8.
Over in the men’s singles, Jorgensen ended the giant killing run of Wong Wing Ki when he defeated the Hong Kong shuttler 21-17, 21-11. Wing Ki had defeated former world champion Chen Jin in straight games in the third round.
Jorgensen will now play SEA Games champion Simon Santoso in one semi-final while four-time world champion Lin Dan will take on Tommy Sugiarto in the other.
Former mixed doubles world champions Laybourn-Juhl (left), who have yet to drop a game in the tournament, cruised into the semi-finals when they knocked out Yoo Yeon Seong-Jang Ye Na 21-19, 21-13.
The fourth seeds will now face second seeded Thais Sudket Prapakamol-Saralee Thoungthongkam for a place in the final.
In the women’s doubles, third seeds Miyuki Maeda-Satoko Suetsuna were stunned by China’s Huan Xin-Tang Jinhua who progressed to the last four with a 21-14, 7-21, 23-21, victory.
There was some consolation for Japan as defending champions Mizuki Fujii-Reika Kakiiwa defeated Cheng Wen Hsing-Chien Yu Chin 21-19, 21-14. Fujii-Kakiiwa are looking to make score a hattrick of titles in Germany, having won this tournament a year ago and the Bitburger Open in November.
For full results, click here.